1 files changed, 5 insertions, 0 deletions
diff --git a/synapse/events/third_party_rules.py b/synapse/events/third_party_rules.py
index a977faeb25..79e2c994d6 100644
--- a/synapse/events/third_party_rules.py
+++ b/synapse/events/third_party_rules.py
@@ -258,6 +258,11 @@ class ThirdPartyEventRules:
                 on_add_user_third_party_identifier
             )
 
+        if on_remove_user_third_party_identifier is not None:
+            self._on_remove_user_third_party_identifier_callbacks.append(
+                on_remove_user_third_party_identifier
+            )
+
     async def check_event_allowed(
         self,
         event: EventBase,