diff --git a/spec/guard/notifier_spec.rb b/spec/guard/notifier_spec.rb
index <HASH>..<HASH> 100644
--- a/spec/guard/notifier_spec.rb
+++ b/spec/guard/notifier_spec.rb
@@ -7,6 +7,7 @@ describe Guard::Notifier do
     before(:each) { ENV["GUARD_ENV"] = 'special_test' }
     
     if mac?
+      require 'growl'
       it "should use Growl on Mac OS X" do
         Growl.should_receive(:notify).with("great",
           :title => "Guard",
Removed growl & libnotify dependencies from gemspec