diff --git a/invokeai/app/services/events/events_base.py b/invokeai/app/services/events/events_base.py
index 6373ec1f78..100e5c024f 100644
--- a/invokeai/app/services/events/events_base.py
+++ b/invokeai/app/services/events/events_base.py
@@ -122,6 +122,7 @@ class EventServiceBase:
         source_node_id: str,
         error_type: str,
         error: str,
+        user_id: str | None,
     ) -> None:
         """Emitted when an invocation has completed"""
         self.__emit_queue_event(
@@ -135,6 +136,7 @@ class EventServiceBase:
                 "source_node_id": source_node_id,
                 "error_type": error_type,
                 "error": error,
+                "user_id": user_id
             },
         )
 
diff --git a/invokeai/app/services/session_processor/session_processor_default.py b/invokeai/app/services/session_processor/session_processor_default.py
index 61270e0879..de963867d5 100644
--- a/invokeai/app/services/session_processor/session_processor_default.py
+++ b/invokeai/app/services/session_processor/session_processor_default.py
@@ -237,6 +237,7 @@ class DefaultSessionProcessor(SessionProcessorBase):
                                 source_node_id=source_invocation_id,
                                 error_type=e.__class__.__name__,
                                 error=error,
+                                user_id=None
                             )
                             pass