diff --git a/tools/build/gnome-shell-build-setup.sh b/tools/build/gnome-shell-build-setup.sh
index 8ff7fbbc9..a3c0cbe6f 100755
--- a/tools/build/gnome-shell-build-setup.sh
+++ b/tools/build/gnome-shell-build-setup.sh
@@ -339,7 +339,7 @@ old="`readlink $HOME/bin/git-bz`"
 new="`readlink $HOME/bin/git-bz`"
 echo "done"
 
-if test "$old" != "$new" ; then
+if test "$old" != "$new" -a "$old" != "" ; then
     echo "WARNING: $HOME/bin/git-bz was changed from '$old' to '$new'"
 fi