diff --git a/spack/package.py b/spack/package.py
index 4b2b4aa3..f6fdd13d 100644
--- a/spack/package.py
+++ b/spack/package.py
@@ -55,6 +55,7 @@ class G2(CMakePackage):
         depends_on("w3emc")
         depends_on("w3emc precision=4", when="precision=4")
         depends_on("w3emc precision=d", when="precision=d")
+        depends_on("w3emc +extradeps", when="+utils")
 
     def cmake_args(self):
         args = [