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-rw-r--r--spec/features/markdown/mermaid_spec.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/spec/features/markdown/mermaid_spec.rb b/spec/features/markdown/mermaid_spec.rb
index e3bcaca737e..aaaceebc216 100644
--- a/spec/features/markdown/mermaid_spec.rb
+++ b/spec/features/markdown/mermaid_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
require 'spec_helper'
describe 'Mermaid rendering', :js do