diff --git a/Library/Homebrew/os/mac/cctools_mach.rb b/Library/Homebrew/os/mac/cctools_mach.rb
index 36f508d28c..7e8f9a4d38 100644
--- a/Library/Homebrew/os/mac/cctools_mach.rb
+++ b/Library/Homebrew/os/mac/cctools_mach.rb
@@ -73,7 +73,7 @@ module CctoolsMachO
       id = libs.shift[OTOOL_RX, 1] if path.dylib?
       libs.map! { |lib| lib[OTOOL_RX, 1] }.compact!
 
-      return id, libs
+      [id, libs]
     end
   end