diff --git a/ocpp/charge_point.py b/ocpp/charge_point.py
index a8d3c5da5..863010db4 100644
--- a/ocpp/charge_point.py
+++ b/ocpp/charge_point.py
@@ -204,6 +204,7 @@ async def _handle_call(self, msg):
             handlers = self.route_map[msg.action]
         except KeyError:
             _raise_keyerror(msg.action, self._ocpp_version)
+            return
 
         if not handlers.get("_skip_schema_validation", False):
             validate_payload(msg, self._ocpp_version)