diff --git a/lib/linguist/generated.rb b/lib/linguist/generated.rb
index 41937ff3..93931f06 100644
--- a/lib/linguist/generated.rb
+++ b/lib/linguist/generated.rb
@@ -179,9 +179,9 @@ module Linguist
       # names don't contain numbers. So look if the line contains digits. Also
       # look for some special cases without version numbers.
       return creator =~ /[0-9]/ ||
-        creator.include? "mpage" ||
-        creator.include? "draw" ||
-        creator.include? "ImageMagick"
+        creator.include?("mpage") ||
+        creator.include?("draw") ||
+        creator.include?("ImageMagick")
     end
 
     # Internal: Is the blob a C++, Java or Python source file generated by the