1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/storage/schema/delta/56/devices_last_seen.sql b/synapse/storage/schema/delta/56/devices_last_seen.sql
index 8818eeeb7e..dfa902d0ba 100644
--- a/synapse/storage/schema/delta/56/devices_last_seen.sql
+++ b/synapse/storage/schema/delta/56/devices_last_seen.sql
@@ -19,3 +19,6 @@
 ALTER TABLE devices ADD COLUMN last_seen BIGINT;
 ALTER TABLE devices ADD COLUMN ip TEXT;
 ALTER TABLE devices ADD COLUMN user_agent TEXT;
+
+INSERT INTO background_updates (update_name, progress_json) VALUES
+  ('devices_last_seen', '{}');