diff --git a/gimp.spec b/gimp.spec
index 32c71a0..c0432e2 100644
--- a/gimp.spec
+++ b/gimp.spec
@@ -51,10 +51,16 @@
 %global dotprerel .%{prerel}
 %global dashprerel -%{prerel}
 %global prerelprefix 0.
+%else
+%global dotprerel %{nil}
+%global dashprerel %{nil}
+%global prerelprefix %{nil}
 %endif
 
 %if %{defined gitrev}
 %global dotgitrev .git%{gitrev}
+%else
+%global dotgitrev %{nil}
 %endif
 
 Summary:        GNU Image Manipulation Program