diff --git a/PythonAPI/examples/rss/rss_sensor.py b/PythonAPI/examples/rss/rss_sensor.py
index 0226607189..e3622bdb31 100644
--- a/PythonAPI/examples/rss/rss_sensor.py
+++ b/PythonAPI/examples/rss/rss_sensor.py
@@ -21,6 +21,7 @@
 import math
 from rss_visualization import RssDebugVisualizer # pylint: disable=relative-import
 
+EVALUATOR_NONE_STATE = ad.rss.state.RssStateEvaluator.names["None"]
 
 # ==============================================================================
 # -- RssSensor -----------------------------------------------------------------
@@ -52,14 +53,14 @@ def __init__(self, rss_state, ego_dynamics_on_route, world_model):
         self.longitudinal_margin = float(rss_state.longitudinalState.rssStateInformation.currentDistance - rss_state.longitudinalState.rssStateInformation.safeDistance)
         self.margin = max(0, self.longitudinal_margin)
         self.lateral_margin = None
-        if rss_state.lateralStateLeft.rssStateInformation.evaluator != "None":
+        if rss_state.lateralStateLeft.rssStateInformation.evaluator != EVALUATOR_NONE_STATE:
             self.lateral_margin = rss_state.lateralStateLeft.rssStateInformation.currentDistance - rss_state.lateralStateLeft.rssStateInformation.safeDistance
-        if rss_state.lateralStateRight.rssStateInformation.evaluator != "None":
+        if rss_state.lateralStateRight.rssStateInformation.evaluator != EVALUATOR_NONE_STATE:
             lateral_margin_right = rss_state.lateralStateRight.rssStateInformation.currentDistance - rss_state.lateralStateRight.rssStateInformation.safeDistance
             if self.lateral_margin==None or self.lateral_margin > lateral_margin_right:
                 self.lateral_margin=lateral_margin_right
         if self.lateral_margin!=None and self.lateral_margin>0:
-            self.margin += self.lateral_margin
+            self.margin += float(self.lateral_margin)
 
     def get_actor(self, world):
         if self.rss_state.objectId == 18446744073709551614: