diff --git a/gridappsd-python-lib/gridappsd/simulation.py b/gridappsd-python-lib/gridappsd/simulation.py
index bb3ef4d..77d4dab 100644
--- a/gridappsd-python-lib/gridappsd/simulation.py
+++ b/gridappsd-python-lib/gridappsd/simulation.py
@@ -336,7 +336,6 @@ def __onmeasurement(self, headers, message):
         :param message:
         :return:
         """
-        message["simulation_id"]
         timestamp = message["message"]["timestamp"]
         measurements = message["message"]["measurements"]
         for p in self.__filterable_measurement_callback_set: