diff --git a/servo-build-dependencies/init.sls b/servo-build-dependencies/init.sls
index 83fa2c0d..9f3e2acf 100644
--- a/servo-build-dependencies/init.sls
+++ b/servo-build-dependencies/init.sls
@@ -33,6 +33,8 @@ servo-dependencies:
       - libosmesa6-dev
       - libssl-dev
       - llvm-3.5-dev
+      - libclang-3.5-dev
+      - clang-3.5
       - xorg-dev
       - xpra
       - xserver-xorg-input-void