diff --git a/tools/op.sh b/tools/op.sh
index f01863e1b1c36b..849fd0bff6ccca 100755
--- a/tools/op.sh
+++ b/tools/op.sh
@@ -327,7 +327,7 @@ function op_switch() {
   fi
   BRANCH="$1"
 
-  git fetch "$REMOTE" "$BRANCH":"$BRANCH"
+  git fetch "$REMOTE" "$BRANCH"
   git checkout -f --recurse-submodules "$BRANCH"
   git reset --hard "$BRANCH"
   git clean -df