diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index b4c4c23499..97db0388bd 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -1821,16 +1821,16 @@ class SyncHandler:
         # of a non lazy-loading-members sync.
         un_partial_stated_rooms = set()
         if not sync_result_builder.sync_config.filter_collection.lazy_load_members():
-            un_partial_state_rooms_since = 0
+            un_partial_stated_rooms_since = 0
             if sync_result_builder.since_token is not None:
-                un_partial_state_rooms_since = (
-                    sync_result_builder.since_token.un_partial_state_rooms_key
+                un_partial_stated_rooms_since = (
+                    sync_result_builder.since_token.un_partial_stated_rooms_key
                 )
 
             un_partial_stated_rooms = (
                 await self.store.get_un_partial_stated_rooms_between(
-                    un_partial_state_rooms_since,
-                    sync_result_builder.now_token.un_partial_state_rooms_key,
+                    un_partial_stated_rooms_since,
+                    sync_result_builder.now_token.un_partial_stated_rooms_key,
                 )
             )
 
diff --git a/synapse/storage/databases/main/relations.py b/synapse/storage/databases/main/relations.py
index 95787c2cfd..84f844b79e 100644
--- a/synapse/storage/databases/main/relations.py
+++ b/synapse/storage/databases/main/relations.py
@@ -292,7 +292,7 @@ class RelationsWorkerStore(SQLBaseStore):
                         to_device_key=0,
                         device_list_key=0,
                         groups_key=0,
-                        un_partial_state_rooms_key=0,
+                        un_partial_stated_rooms_key=0,
                     )
 
             return events[:limit], next_token
diff --git a/synapse/streams/events.py b/synapse/streams/events.py
index 7e7bd160b5..584ad1004b 100644
--- a/synapse/streams/events.py
+++ b/synapse/streams/events.py
@@ -58,7 +58,7 @@ class EventSources:
         push_rules_key = self.store.get_max_push_rules_stream_id()
         to_device_key = self.store.get_to_device_stream_token()
         device_list_key = self.store.get_device_stream_token()
-        un_partial_state_rooms_key = self.store.get_un_partial_stated_rooms_token()
+        un_partial_stated_rooms_key = self.store.get_un_partial_stated_rooms_token()
 
         token = StreamToken(
             room_key=self.sources.room.get_current_key(),
@@ -71,7 +71,7 @@ class EventSources:
             device_list_key=device_list_key,
             # Groups key is unused.
             groups_key=0,
-            un_partial_state_rooms_key=un_partial_state_rooms_key,
+            un_partial_stated_rooms_key=un_partial_stated_rooms_key,
         )
         return token
 
@@ -109,6 +109,6 @@ class EventSources:
             to_device_key=0,
             device_list_key=0,
             groups_key=0,
-            un_partial_state_rooms_key=0,
+            un_partial_stated_rooms_key=0,
         )
         return token
diff --git a/synapse/types/__init__.py b/synapse/types/__init__.py
index d378c39ec2..a45d7cf2e6 100644
--- a/synapse/types/__init__.py
+++ b/synapse/types/__init__.py
@@ -646,7 +646,7 @@ class StreamToken:
         7. `to_device_key`: `274711`
         8. `device_list_key`: `265584`
         9. `groups_key`: `1` (note that this key is now unused)
-        10. `un_partial_state_rooms_key`: `379`
+        10. `un_partial_stated_rooms_key`: `379`
 
     You can see how many of these keys correspond to the various
     fields in a "/sync" response:
@@ -700,7 +700,7 @@ class StreamToken:
     device_list_key: int
     # Note that the groups key is no longer used and may have bogus values.
     groups_key: int
-    un_partial_state_rooms_key: int
+    un_partial_stated_rooms_key: int
 
     _SEPARATOR = "_"
     START: ClassVar["StreamToken"]
@@ -739,7 +739,7 @@ class StreamToken:
                 # serialized so that there will not be confusion in the future
                 # if additional tokens are added.
                 str(self.groups_key),
-                str(self.un_partial_state_rooms_key),
+                str(self.un_partial_stated_rooms_key),
             ]
         )