diff --git a/lib/Migration/Version030102Date20210812020000.php b/lib/Migration/Version030102Date20210812020000.php
index 804c17ae68aaf5f413e10aafca37b14825a311f0..82d4acdd3dc81a84e615c2902bca0e47ced98f59 100644
--- a/lib/Migration/Version030102Date20210812020000.php
+++ b/lib/Migration/Version030102Date20210812020000.php
@@ -31,7 +31,7 @@ class Version030102Date20210812020000 extends SimpleMigrationStep {
 
         $table = $schema->getTable('dematpayslip_archive');
 
-        //$table->dropIndex('dematpayslip_archive_id_file');
+        $table->dropIndex('demat_archive_id_file');
         $table->addIndex(['id_file'], 'demat_archive_id_file');
 
         return $schema;