diff --git a/spinn_front_end_common/utilities/utility_objs/extra_monitor_scp_messages/get_reinjection_status_message.py b/spinn_front_end_common/utilities/utility_objs/extra_monitor_scp_messages/get_reinjection_status_message.py
index 9057e090bf..397979cae5 100644
--- a/spinn_front_end_common/utilities/utility_objs/extra_monitor_scp_messages/get_reinjection_status_message.py
+++ b/spinn_front_end_common/utilities/utility_objs/extra_monitor_scp_messages/get_reinjection_status_message.py
@@ -70,8 +70,8 @@ def read_data_bytestring(self, data: bytes, offset: int):
         result = self.scp_response_header.result
         if result != SCPResult.RC_OK:
             raise SpinnmanUnexpectedResponseCodeException(
-                "Get packet reinjection status", self._command_code,
-                result.name)
+                "Get packet reinjection status",
+                str(self._command_code), result.name)
         self._reinjection_status = ReInjectionStatus(data, offset)
 
     @property