1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/appservice/__init__.py b/synapse/appservice/__init__.py

index d23d9221bc..a610fb785d 100644
--- a/synapse/appservice/__init__.py
+++ b/synapse/appservice/__init__.py
@@ -42,7 +42,7 @@ logger = logging.getLogger(__name__)
 #   user ID -> {device ID -> {algorithm -> count}}
 TransactionOneTimeKeyCounts = Dict[str, Dict[str, Dict[str, int]]]
 
-# Type for the `device_unused_fallback_keys` field in an appservice transaction
+# Type for the `device_unused_fallback_key_types` field in an appservice transaction
 #   user ID -> {device ID -> [algorithm]}
 TransactionUnusedFallbackKeys = Dict[str, Dict[str, List[str]]]