diff --git a/synapse/storage/databases/main/events_worker.py b/synapse/storage/databases/main/events_worker.py
index 5d7ecefc7142..dd0ee17b2eea 100644
--- a/synapse/storage/databases/main/events_worker.py
+++ b/synapse/storage/databases/main/events_worker.py
@@ -736,7 +736,7 @@ async def _invalidate_get_event_cache(self, event_id: str) -> None:
         self._invalidate_local_get_event_cache(event_id)
 
     def _invalidate_local_get_event_cache(self, event_id: str) -> None:
-        self._get_event_cache.lru_cache.invalidate((event_id,))
+        self._get_event_cache.invalidate_local((event_id,))
         self._event_ref.pop(event_id, None)
         self._current_event_fetches.pop(event_id, None)
 
diff --git a/synapse/util/caches/lrucache.py b/synapse/util/caches/lrucache.py
index 2f47b7885111..4ce7d7a602ab 100644
--- a/synapse/util/caches/lrucache.py
+++ b/synapse/util/caches/lrucache.py
@@ -753,6 +753,9 @@ async def set(self, key: KT, value: VT) -> None:
     async def invalidate(self, key: KT) -> None:
         return self.lru_cache.invalidate(key)
 
+    def invalidate_local(self, key: KT) -> None:
+        return self.lru_cache.invalidate(key)
+
     async def contains(self, key: KT) -> bool:
         return self.lru_cache.contains(key)