diff --git a/scripts/finish_release.sh b/scripts/finish_release.sh
index 8df13c3ea9..8dbad97771 100755
--- a/scripts/finish_release.sh
+++ b/scripts/finish_release.sh
@@ -15,6 +15,11 @@ fi
 
 BRANCH=$(git branch --show-current)
 
+if git tag | grep -q "$2" ; then
+    echo "Tag $2 already exists"
+    exit 1
+fi
+
 git fetch
 git checkout "$2"