diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index f01798eba6..a7bcaf1442 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -104,6 +104,7 @@ class AbstractFormula
         puts "Type `exit' and Homebrew will attempt to finalize the installation"
         puts "If nothing is installed to #{prefix}, then Homebrew will abort"
         interactive_shell
+        raise "Non-zero exit status, installation aborted" if $? != 0
       end
     end
   end