diff --git a/var/spack/packages/julia/package.py b/var/spack/packages/julia/package.py
index 9fd946c905..6e81564e17 100644
--- a/var/spack/packages/julia/package.py
+++ b/var/spack/packages/julia/package.py
@@ -9,7 +9,7 @@ class Julia(Package):
     version('0.4.2', 'ccfeb4f4090c8b31083f5e1ccb03eb06')
 
     # Build-time dependencies
-    # depends_on("cmake")
+    depends_on("cmake")
     # depends_on("awk")
     # depends_on("m4")
     # depends_on("pkg-config")