diff --git a/gbcs-api/src/main/java/net/woggioni/gbcs/api/Configuration.java b/gbcs-api/src/main/java/net/woggioni/gbcs/api/Configuration.java
index 58a317f..84b27c6 100644
--- a/gbcs-api/src/main/java/net/woggioni/gbcs/api/Configuration.java
+++ b/gbcs-api/src/main/java/net/woggioni/gbcs/api/Configuration.java
@@ -91,11 +91,14 @@ public class Configuration {
         boolean verifyClients;
     }
 
+    public enum ClientCertificate {
+        REQUIRED, OPTIONAL
+    }
+
     @Value
     public static class Tls {
         KeyStore keyStore;
         TrustStore trustStore;
-        boolean verifyClients;
     }
 
     @Value
@@ -111,6 +114,7 @@ public class Configuration {
         Path file;
         String password;
         boolean checkCertificateStatus;
+        boolean requireClientCertificate;
     }
 
     @Value
diff --git a/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/GradleBuildCacheServer.kt b/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/GradleBuildCacheServer.kt
index e5072a4..648d651 100644
--- a/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/GradleBuildCacheServer.kt
+++ b/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/GradleBuildCacheServer.kt
@@ -208,15 +208,15 @@ class GradleBuildCacheServer(private val cfg: Configuration) {
                             .map { it as X509Certificate }
                             .toArray { size -> Array<X509Certificate?>(size) { null } }
                     SslContextBuilder.forServer(serverKey, *serverCert).apply {
-                        if (tls.isVerifyClients) {
-                            clientAuth(ClientAuth.OPTIONAL)
-                            tls.trustStore?.let { trustStore ->
-                                val ts = loadKeystore(trustStore.file, trustStore.password)
-                                trustManager(
-                                    ClientCertificateValidator.getTrustManager(ts, trustStore.isCheckCertificateStatus)
-                                )
-                            }
-                        }
+                        val clientAuth = tls.trustStore?.let { trustStore ->
+                            val ts = loadKeystore(trustStore.file, trustStore.password)
+                            trustManager(
+                                ClientCertificateValidator.getTrustManager(ts, trustStore.isCheckCertificateStatus)
+                            )
+                            if(trustStore.isRequireClientCertificate) ClientAuth.REQUIRE
+                            else ClientAuth.OPTIONAL
+                        } ?: ClientAuth.NONE
+                        clientAuth(clientAuth)
                     }.build()
                 }
             }
diff --git a/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Parser.kt b/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Parser.kt
index 7052f52..172c2f5 100644
--- a/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Parser.kt
+++ b/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Parser.kt
@@ -142,10 +142,9 @@ object Parser {
                 }
 
                 "tls" -> {
-                    val verifyClients = child.renderAttribute("verify-clients")
-                        ?.let(String::toBoolean) ?: false
                     var keyStore: KeyStore? = null
                     var trustStore: TrustStore? = null
+
                     for (granChild in child.asIterable()) {
                         when (granChild.localName) {
                             "keystore" -> {
@@ -167,15 +166,19 @@ object Parser {
                                 val checkCertificateStatus = granChild.renderAttribute("check-certificate-status")
                                     ?.let(String::toBoolean)
                                     ?: false
+                                val requireClientCertificate = child.renderAttribute("require-client-certificate")
+                                    ?.let(String::toBoolean) ?: false
+
                                 trustStore = TrustStore(
                                     trustStoreFile,
                                     trustStorePassword,
-                                    checkCertificateStatus
+                                    checkCertificateStatus,
+                                    requireClientCertificate
                                 )
                             }
                         }
                     }
-                    tls = Tls(keyStore, trustStore, verifyClients)
+                    tls = Tls(keyStore, trustStore)
                 }
             }
         }
diff --git a/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Serializer.kt b/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Serializer.kt
index bde42d9..febb0fa 100644
--- a/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Serializer.kt
+++ b/gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Serializer.kt
@@ -154,9 +154,6 @@ object Serializer {
 
             conf.tls?.let { tlsConfiguration ->
                 node("tls") {
-                    if(tlsConfiguration.isVerifyClients) {
-                        attr("verify-clients", "true")
-                    }
                     tlsConfiguration.keyStore?.let { keyStore ->
                         node("keystore") {
                             attr("file", keyStore.file.toString())
@@ -177,6 +174,7 @@ object Serializer {
                                 attr("password", password)
                             }
                             attr("check-certificate-status", trustStore.isCheckCertificateStatus.toString())
+                            attr("require-client-certificate", trustStore.isRequireClientCertificate.toString())
                         }
                     }
                 }
diff --git a/gbcs-server/src/main/resources/net/woggioni/gbcs/server/schema/gbcs.xsd b/gbcs-server/src/main/resources/net/woggioni/gbcs/server/schema/gbcs.xsd
index cade632..d5c15b1 100644
--- a/gbcs-server/src/main/resources/net/woggioni/gbcs/server/schema/gbcs.xsd
+++ b/gbcs-server/src/main/resources/net/woggioni/gbcs/server/schema/gbcs.xsd
@@ -183,7 +183,6 @@
             <xs:element name="keystore" type="gbcs:keyStoreType" />
             <xs:element name="truststore" type="gbcs:trustStoreType" minOccurs="0"/>
         </xs:all>
-        <xs:attribute name="verify-clients" type="xs:boolean" use="optional" default="false"/>
     </xs:complexType>
 
     <xs:complexType name="keyStoreType">
@@ -197,6 +196,7 @@
         <xs:attribute name="file" type="xs:string" use="required"/>
         <xs:attribute name="password" type="xs:string"/>
         <xs:attribute name="check-certificate-status" type="xs:boolean"/>
+        <xs:attribute name="require-client-certificate" type="xs:boolean" use="optional" default="false"/>
     </xs:complexType>
 
     <xs:complexType name="propertiesType">
diff --git a/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/AbstractTlsServerTest.kt b/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/AbstractTlsServerTest.kt
index 5c90385..b2ec910 100644
--- a/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/AbstractTlsServerTest.kt
+++ b/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/AbstractTlsServerTest.kt
@@ -171,9 +171,8 @@ abstract class AbstractTlsServerTest : AbstractServerTest() {
             ),
             Configuration.Tls(
                 Configuration.KeyStore(this.serverKeyStoreFile, null, SERVER_CERTIFICATE_ENTRY, PASSWORD),
-                Configuration.TrustStore(this.trustStoreFile, null, false),
-                true
-            ),
+                Configuration.TrustStore(this.trustStoreFile, null, false, false),
+            )
         )
         Xml.write(Serializer.serialize(cfg), System.out)
     }
diff --git a/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/ConfigurationTest.kt b/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/ConfigurationTest.kt
index 5206987..2a63b10 100644
--- a/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/ConfigurationTest.kt
+++ b/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/ConfigurationTest.kt
@@ -20,6 +20,7 @@ class ConfigurationTest {
             "classpath:net/woggioni/gbcs/server/test/valid/gbcs-default.xml",
             "classpath:net/woggioni/gbcs/server/test/valid/gbcs-memcached.xml",
             "classpath:net/woggioni/gbcs/server/test/valid/gbcs-tls.xml",
+            "classpath:net/woggioni/gbcs/server/test/valid/gbcs-memcached-tls.xml",
         ]
     )
     @ParameterizedTest
diff --git a/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/TlsServerTest.kt b/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/TlsServerTest.kt
index e753a53..c0d0902 100644
--- a/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/TlsServerTest.kt
+++ b/gbcs-server/src/test/kotlin/net/woggioni/gbcs/server/test/TlsServerTest.kt
@@ -7,6 +7,7 @@ import org.bouncycastle.asn1.x500.X500Name
 import org.junit.jupiter.api.Assertions
 import org.junit.jupiter.api.Order
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.params.provider.ArgumentsSource
 import java.net.http.HttpClient
 import java.net.http.HttpRequest
 import java.net.http.HttpResponse
diff --git a/gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-memcached-tls.xml b/gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-memcached-tls.xml
new file mode 100644
index 0000000..84a7fb7
--- /dev/null
+++ b/gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-memcached-tls.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<gbcs:server xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
+             xmlns:gbcs="urn:net.woggioni.gbcs.server"
+             xmlns:gbcs-memcached="urn:net.woggioni.gbcs.server.memcached"
+             xs:schemaLocation="urn:net.woggioni.gbcs.server.memcached jpms://net.woggioni.gbcs.server.memcached/net/woggioni/gbcs/server/memcached/schema/gbcs-memcached.xsd urn:net.woggioni.gbcs.server jpms://net.woggioni.gbcs.server/net/woggioni/gbcs/server/schema/gbcs.xsd"
+>
+    <bind host="0.0.0.0" port="8443" incoming-connections-backlog-size="4096"/>
+    <connection
+            max-request-size="67108864"
+            idle-timeout="PT30S"
+            read-idle-timeout="PT60S"
+            write-idle-timeout="PT60S"
+            read-timeout="PT5M"
+            write-timeout="PT5M"/>
+    <event-executor use-virtual-threads="true"/>
+    <cache xs:type="gbcs-memcached:memcachedCacheType" max-age="P7D" max-size="16777216" compression-mode="zip">
+        <server host="memcached" port="11211"/>
+    </cache>
+    <authorization>
+        <users>
+            <user name="woggioni">
+                <quota calls="1000" period="PT1S"/>
+            </user>
+            <user name="gitea">
+                <quota calls="10" period="PT1S" initial-available-calls="100" max-available-calls="100"/>
+            </user>
+            <anonymous>
+                <quota calls="2" period="PT5S"/>
+            </anonymous>
+        </users>
+        <groups>
+            <group name="writers">
+                <users>
+                    <user ref="woggioni"/>
+                    <user ref="gitea"/>
+                </users>
+                <roles>
+                    <reader/>
+                    <writer/>
+                </roles>
+            </group>
+        </groups>
+    </authorization>
+    <authentication>
+        <client-certificate>
+            <user-extractor attribute-name="CN" pattern="(.*)"/>
+        </client-certificate>
+    </authentication>
+    <tls>
+        <keystore file="/home/luser/ssl/gbcs.woggioni.net.pfx" key-alias="gbcs.woggioni.net" password="KEYSTORE_PASSWOR" key-password="KEY_PASSWORD"/>
+        <truststore file="/home/luser/ssl/woggioni.net.pfx" check-certificate-status="false" password="TRUSTSTORE_PASSWORD"/>
+    </tls>
+</gbcs:server>
\ No newline at end of file
diff --git a/gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-tls.xml b/gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-tls.xml
index cda0103..b3642df 100644
--- a/gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-tls.xml
+++ b/gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-tls.xml
@@ -60,8 +60,8 @@
             <user-extractor pattern="user-pattern" attribute-name="CN"/>
         </client-certificate>
     </authentication>
-    <tls verify-clients="true">
+    <tls>
         <keystore file="keystore.pfx" key-alias="key1" password="password" key-password="key-password"/>
-        <truststore file="truststore.pfx" password="password" check-certificate-status="true" />
+        <truststore file="truststore.pfx" password="password" check-certificate-status="true" require-client-certificate="true"/>
     </tls>
 </gbcs:server>
\ No newline at end of file