diff --git a/var/spack/repos/builtin/packages/gmap-gsnap/package.py b/var/spack/repos/builtin/packages/gmap-gsnap/package.py
index 7db09fb72df..c7c70c7c92e 100644
--- a/var/spack/repos/builtin/packages/gmap-gsnap/package.py
+++ b/var/spack/repos/builtin/packages/gmap-gsnap/package.py
@@ -34,3 +34,4 @@ class GmapGsnap(AutotoolsPackage):
     url      = "http://research-pub.gene.com/gmap/src/gmap-gsnap-2017-06-16.tar.gz"
 
     version('2017-06-16', 'fcc91b8bdd4bf12ae3124de0c00db0c0')
+    version('2014-12-28', '1ab07819c9e5b5b8970716165ccaa7da')