diff --git a/synapse/storage/schema/delta/38/postgres_fts_gist.sql b/synapse/storage/schema/delta/38/postgres_fts_gist.sql
index 5fe27d6877..515e6b8e84 100644
--- a/synapse/storage/schema/delta/38/postgres_fts_gist.sql
+++ b/synapse/storage/schema/delta/38/postgres_fts_gist.sql
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
--- We no longer do this given we back it out again in schema 46
+-- We no longer do this given we back it out again in schema 47
 
 -- INSERT into background_updates (update_name, progress_json)
 --     VALUES ('event_search_postgres_gist', '{}');
diff --git a/synapse/storage/schema/delta/46/postgres_fts_gin.sql b/synapse/storage/schema/delta/47/postgres_fts_gin.sql
similarity index 100%
rename from synapse/storage/schema/delta/46/postgres_fts_gin.sql
rename to synapse/storage/schema/delta/47/postgres_fts_gin.sql