diff --git a/arch-builder/Dockerfile b/arch-builder/Dockerfile
index 080de7b..cfc6773 100644
--- a/arch-builder/Dockerfile
+++ b/arch-builder/Dockerfile
@@ -50,6 +50,7 @@ RUN pacman -S --noconfirm --needed \
     maven \
     tar \
     xz \
+    llvm \
     graphviz \
     imagemagick \
     python-sphinx \