diff --git a/web/Cargo.toml b/web/Cargo.toml
index 4e5d709..ee1de75 100644
--- a/web/Cargo.toml
+++ b/web/Cargo.toml
@@ -44,3 +44,4 @@ console_error_panic_hook = "0.1"
 [profile.release]
 opt-level = "z"
 lto = true
+codegen-units = 1
diff --git a/web/index.html b/web/index.html
index 68db389..e19bd04 100644
--- a/web/index.html
+++ b/web/index.html
@@ -19,7 +19,7 @@
     <link data-trunk rel="copy-file" href="pwa/icons/icon.svg" data-target-path="icons">
     <link data-trunk rel="copy-file" href="pwa/icons/icon-192.png" data-target-path="icons">
     <link data-trunk rel="copy-file" href="pwa/icons/icon-512.png" data-target-path="icons">
-    <link data-trunk rel="rust" href="Cargo.toml">
+    <link data-trunk rel="rust" href="Cargo.toml" data-wasm-opt="z">
     <link data-trunk rel="css" href="vendor/bootstrap.min.css">
     <link data-trunk rel="css" href="theme.css">
     <link data-trunk rel="css" href="style.css">