diff --git a/changelog.d/9637.misc b/changelog.d/9637.misc
new file mode 100644
index 0000000000000000000000000000000000000000..90a27d9f8fcd55daec37a75266f18b3f5ddb0eff
--- /dev/null
+++ b/changelog.d/9637.misc
@@ -0,0 +1 @@
+Rename storage function to fix spelling and not conflict with another functions name.
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
index df3cdc8fba112737046e98dbd94723807646543c..6aa3f73eeeebae01ce9d332dfb30f33582e7fcc4 100644
--- a/synapse/handlers/device.py
+++ b/synapse/handlers/device.py
@@ -166,7 +166,7 @@ class DeviceWorkerHandler(BaseHandler):
 
             # Fetch the current state at the time.
             try:
-                event_ids = await self.store.get_forward_extremeties_for_room(
+                event_ids = await self.store.get_forward_extremities_for_room_at_stream_ordering(
                     room_id, stream_ordering=stream_ordering
                 )
             except errors.StoreError:
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index f50257cd5736cfd2faba5ea79cad919ef117a559..7b723ead58ece7b2c993c23f23ceb124998c7b24 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -1979,8 +1979,10 @@ class SyncHandler:
 
             logger.info("User joined room after current token: %s", room_id)
 
-            extrems = await self.store.get_forward_extremeties_for_room(
-                room_id, event_pos.stream
+            extrems = (
+                await self.store.get_forward_extremities_for_room_at_stream_ordering(
+                    room_id, event_pos.stream
+                )
             )
             users_in_room = await self.state.get_current_users_in_room(room_id, extrems)
             if user_id in users_in_room:
diff --git a/synapse/storage/databases/main/event_federation.py b/synapse/storage/databases/main/event_federation.py
index 332193ad1c93cb1ec74c876c8e8a02f000c2b153..a956be491a6ecbfc66c03307386a22b19bc82369 100644
--- a/synapse/storage/databases/main/event_federation.py
+++ b/synapse/storage/databases/main/event_federation.py
@@ -793,7 +793,7 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore, SQLBas
 
         return int(min_depth) if min_depth is not None else None
 
-    async def get_forward_extremeties_for_room(
+    async def get_forward_extremities_for_room_at_stream_ordering(
         self, room_id: str, stream_ordering: int
     ) -> List[str]:
         """For a given room_id and stream_ordering, return the forward