1 files changed, 3 insertions, 3 deletions
diff --git a/railties/lib/rails/generators/rails/plugin/plugin_generator.rb b/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
index 239b3a5739..294c8a2609 100644
--- a/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
+++ b/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
@@ -349,9 +349,9 @@ task default: :test
       def wrap_in_modules(unwrapped_code)
         unwrapped_code = "#{unwrapped_code}".strip.gsub(/\s$\n/, "")
         modules.reverse.inject(unwrapped_code) do |content, mod|
-          str = "module #{mod}\n"
-          str += content.lines.map { |line| "  #{line}" }.join
-          str += content.present? ? "\nend" : "end"
+          str = +"module #{mod}\n"
+          str << content.lines.map { |line| "  #{line}" }.join
+          str << (content.present? ? "\nend" : "end")
         end
       end