diff --git a/heavy_script.sh b/heavy_script.sh
index 3d8f2766..b31616c8 100644
--- a/heavy_script.sh
+++ b/heavy_script.sh
@@ -21,7 +21,7 @@ git fetch
     git checkout $BRANCH
     git pull --force
     echo "Running the new version..."
-    exec bash "$SCRIPTNAME" "${ARGS[@]/[\ ]\-\-self\-update[\ ]}"
+    exec bash "$SCRIPTNAME" "${ARGS[@]/(\ )\-\-self\-update(\ )}"
 
     # Now exit this old instance
     exit 1