diff --git a/nav2_simple_commander/nav2_simple_commander/robot_navigator.py b/nav2_simple_commander/nav2_simple_commander/robot_navigator.py
index 64f2117a08a..24040f3ceb5 100644
--- a/nav2_simple_commander/nav2_simple_commander/robot_navigator.py
+++ b/nav2_simple_commander/nav2_simple_commander/robot_navigator.py
@@ -426,7 +426,7 @@ def _smoothPathImpl(self, path, smoother_id='', max_duration=2.0, check_for_coll
     def smoothPath(self, path, smoother_id='', max_duration=2.0, check_for_collision=False):
         """Send a `SmoothPath` action request."""
         rtn = self._smoothPathImpl(
-            self, path, smoother_id, max_duration, check_for_collision)
+            path, smoother_id, max_duration, check_for_collision)
         if not rtn:
             return None
         else: