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-rw-r--r--rubocop/cop/migration/remove_index.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/rubocop/cop/migration/remove_index.rb b/rubocop/cop/migration/remove_index.rb
index 4df3b1ba756..15c2f37b4b0 100644
--- a/rubocop/cop/migration/remove_index.rb
+++ b/rubocop/cop/migration/remove_index.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
require_relative '../../migration_helpers'
module RuboCop