diff --git a/Library/Homebrew/rubocops/lines.rb b/Library/Homebrew/rubocops/lines.rb
index 4220e9a3ce..d4f38ac68d 100644
--- a/Library/Homebrew/rubocops/lines.rb
+++ b/Library/Homebrew/rubocops/lines.rb
@@ -441,7 +441,7 @@ module RuboCop
             elsif shell_parameter_stripped == "--shell="
               :arg
             else
-              "\"#{shell_parameter_stripped}\""
+              shell_parameter_stripped
             end
 
             replacement_args = %w[]