diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 7c5631d01..00a04f565 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -67,7 +67,7 @@ SCHEMAS = [
 
 # Remember to update this number every time an incompatible change is made to
 # database schema files, so the users will be informed on server restarts.
-SCHEMA_VERSION = 11
+SCHEMA_VERSION = 12
 
 
 class _RollbackButIsFineException(Exception):
diff --git a/synapse/storage/schema/delta/v12.sql b/synapse/storage/schema/delta/v12.sql
new file mode 100644
index 000000000..795aca4af
--- /dev/null
+++ b/synapse/storage/schema/delta/v12.sql
@@ -0,0 +1,24 @@
+/* Copyright 2015 OpenMarket Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+CREATE TABLE IF NOT EXISTS user_filters(
+  user_id TEXT,
+  filter_id INTEGER,
+  definition TEXT,
+  FOREIGN KEY(user_id) REFERENCES users(id)
+);
+
+CREATE INDEX IF NOT EXISTS user_filters_by_user_id_filter_id ON user_filters(
+  user_id, filter_id
+);