diff --git a/update-gluon.sh b/update-gluon.sh
index 3d78adcaf415333f98eb6d2efb5716d57942ee84..580b255c91e3fe92a63e40ca6dca96c6cb27fa1c 100755
--- a/update-gluon.sh
+++ b/update-gluon.sh
@@ -19,7 +19,7 @@ git remote add upstream "$gluon_upstream_git_url"
 git fetch upstream --tags
 
 # we already have this branch - exit
-if ! git rev-parse --verify "$fork_newest_minor_branch" &> /dev/null; then
+if git rev-parse --verify "$fork_newest_minor_branch" &> /dev/null; then
     echo "Nothing todo, branch $fork_newest_minor_branch already exists"
     exit 1
 fi