diff --git a/internal/blocktx/store/postgresql/migrations/000021_remove_unique_height_is_longest.down.sql b/internal/blocktx/store/postgresql/migrations/000020_remove_unique_height_is_longest.down.sql
similarity index 100%
rename from internal/blocktx/store/postgresql/migrations/000021_remove_unique_height_is_longest.down.sql
rename to internal/blocktx/store/postgresql/migrations/000020_remove_unique_height_is_longest.down.sql
diff --git a/internal/blocktx/store/postgresql/migrations/000021_remove_unique_height_is_longest.up.sql b/internal/blocktx/store/postgresql/migrations/000020_remove_unique_height_is_longest.up.sql
similarity index 64%
rename from internal/blocktx/store/postgresql/migrations/000021_remove_unique_height_is_longest.up.sql
rename to internal/blocktx/store/postgresql/migrations/000020_remove_unique_height_is_longest.up.sql
index 8601dd842..5a3884d2e 100644
--- a/internal/blocktx/store/postgresql/migrations/000021_remove_unique_height_is_longest.up.sql
+++ b/internal/blocktx/store/postgresql/migrations/000020_remove_unique_height_is_longest.up.sql
@@ -1,2 +1,2 @@
 -- This is a temporary solution to allow multiple blocks at the same height
-DROP INDEX pux_height_is_longest;
+DROP INDEX blocktx.pux_height_is_longest;