diff --git a/selfdrive/controls/plannerd.py b/selfdrive/controls/plannerd.py
index e78a7ffdb1..8994fb7c08 100755
--- a/selfdrive/controls/plannerd.py
+++ b/selfdrive/controls/plannerd.py
@@ -23,7 +23,7 @@ def main():
   longitudinal_planner = LongitudinalPlanner(CP)
   pm = messaging.PubMaster(['longitudinalPlan', 'driverAssistance', 'longitudinalPlanSP'])
   sm = messaging.SubMaster(['carControl', 'carState', 'controlsState', 'liveParameters', 'radarState', 'modelV2', 'selfdriveState',
-                            "liveMapDataSP", "carStateSP", gps_location_service],
+                            'liveMapDataSP', 'carStateSP', gps_location_service],
                            poll='modelV2')
 
   while True: