diff --git a/db/migrate/20160715134306_add_index_for_pipeline_user_id.rb b/db/migrate/20160715134306_add_index_for_pipeline_user_id.rb
index e09caa0e6d7..7c991c6d998 100644
--- a/db/migrate/20160715134306_add_index_for_pipeline_user_id.rb
+++ b/db/migrate/20160715134306_add_index_for_pipeline_user_id.rb
@@ -1,6 +1,8 @@
 class AddIndexForPipelineUserId < ActiveRecord::Migration
   include Gitlab::Database::MigrationHelpers
 
+  disable_ddl_transaction!
+
   def change
     add_concurrent_index :ci_commits, :user_id
   end