diff --git a/Library/Homebrew/cxxstdlib.rb b/Library/Homebrew/cxxstdlib.rb
index 3326ebac07..7847552baa 100644
--- a/Library/Homebrew/cxxstdlib.rb
+++ b/Library/Homebrew/cxxstdlib.rb
@@ -51,6 +51,10 @@ class CxxStdlib
     type.to_s.gsub(/cxx$/, 'c++')
   end
 
+  def inspect
+    "#<#{self.class.name}: #{compiler} #{type}>"
+  end
+
   class AppleStdlib < CxxStdlib
     def apple_compiler?
       true