diff --git a/Rakefile b/Rakefile
index c7075d440..778361e3d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -39,12 +39,12 @@ end
 namespace :specs do
 
   task :with_mocking do
-    Fog.mocking = true
+    Fog.mock!
     Rake::Task[:spec].invoke
   end
 
   task :without_mocking do
-    Fog.mocking = true
+    Fog.mock!
     Rake::Task[:spec].invoke
   end