diff --git a/var/spack/packages/cram/package.py b/var/spack/packages/cram/package.py
index 4b8ec56f25..1f1722993f 100644
--- a/var/spack/packages/cram/package.py
+++ b/var/spack/packages/cram/package.py
@@ -7,6 +7,7 @@ class Cram(Package):
 
     version('1.0.1', 'c73711e945cf5dc603e44395f6647f5e')
 
+    extends('python')
     depends_on("mpi")
 
     def install(self, spec, prefix):