diff --git a/var/spack/repos/builtin.mock/packages/git-ref-package/package.py b/var/spack/repos/builtin.mock/packages/git-ref-package/package.py
index 3f26d73ce24..f81b209d257 100644
--- a/var/spack/repos/builtin.mock/packages/git-ref-package/package.py
+++ b/var/spack/repos/builtin.mock/packages/git-ref-package/package.py
@@ -16,7 +16,6 @@ class GitRefPackage(AutotoolsPackage):
     url = "https://github.com/dummy/dummy/archive/2.0.0.tar.gz"
     git = "https://github.com/dummy/dummy.git"
 
-
     version("2.1.6", sha256="a5d504c0d52e2e2721e7e7d86988dec2e290d723ced2307145dedd06aeb6fef2")
     version("2.1.5", sha256="3f6576971397b379d4205ae5451ff5a68edf6c103b2f03c4188ed7075fbb5f04")
     version("2.1.4", sha256="a0293475e6a44a3f6c045229fe50f69dc0eebc62a42405a51f19d46a5541e77a")