diff --git a/antipodal_gripper_controller/src/antipodal_gripper_action_controller_parameters.yaml b/antipodal_gripper_controller/src/antipodal_gripper_action_controller_parameters.yaml
index dcf90ec613..e3513856b4 100644
--- a/antipodal_gripper_controller/src/antipodal_gripper_action_controller_parameters.yaml
+++ b/antipodal_gripper_controller/src/antipodal_gripper_action_controller_parameters.yaml
@@ -9,7 +9,7 @@ antipodal_gripper_action_controller:
   }
   joint: {
     type: string,
-    default_value: "",
+    read_only: true,
   }
   goal_tolerance: {
     type: double,