diff --git a/snuba/snuba_migrations/replays/0021_index_tags.py b/snuba/snuba_migrations/replays/0021_index_tags.py
index 7d9c9f3491..77eccebed7 100644
--- a/snuba/snuba_migrations/replays/0021_index_tags.py
+++ b/snuba/snuba_migrations/replays/0021_index_tags.py
@@ -56,7 +56,7 @@ def backward_columns_iter() -> list[operations.SqlOperation]:
         operations.DropIndex(
             StorageSetKey.REPLAYS,
             "replays_local",
-            "_tags_hash_map",
+            "bf_tags_hash_map",
             target=operations.OperationTarget.LOCAL,
         ),
         operations.DropColumn(