diff --git a/spinnman/transceiver/base_transceiver.py b/spinnman/transceiver/base_transceiver.py
index 4a53d9df9..ee6334feb 100644
--- a/spinnman/transceiver/base_transceiver.py
+++ b/spinnman/transceiver/base_transceiver.py
@@ -301,7 +301,7 @@ def _check_connection(
     @overrides(AbstractTransceiver.send_sdp_message)
     def send_sdp_message(self, message, connection=None):
         if connection is None:
-            self._scamp_connections[random.randint(
+            sconnection_to_use = self._scamp_connections[random.randint(
                 0, len(self._scamp_connections) - 1)]
         else:
             connection_to_use = connection