1 files changed, 2 insertions, 0 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index 41d9111019..481fec72fe 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -37,6 +37,8 @@ class SQLBaseStore(metaclass=ABCMeta):
     per data store (and not one per physical database).
     """
 
+    db_pool: DatabasePool
+
     def __init__(
         self,
         database: DatabasePool,