diff --git a/gramps/gen/const.py b/gramps/gen/const.py
index 9eaeabd54..fe5e0b2b1 100644
--- a/gramps/gen/const.py
+++ b/gramps/gen/const.py
@@ -135,7 +135,7 @@ git_revision = get_git_revision(ROOT_DIR)
 if sys.platform == 'win32' and git_revision == "":
     git_revision = get_git_revision(os.path.split(ROOT_DIR)[1])
 #VERSION += git_revision
-VERSION = "-1"
+VERSION += "-1"
 
 #
 # Glade files