diff --git a/app/helpers/sessions_helper.rb b/app/helpers/sessions_helper.rb
index 9710ac4..0d92e1b 100644
--- a/app/helpers/sessions_helper.rb
+++ b/app/helpers/sessions_helper.rb
@@ -19,7 +19,7 @@ def signed_in?
   
   def sign_out
     cookies.delete(:remember_token)
-    self.current_user = nil
+    current_user = nil
   end
   
   private
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 698c0d1..c212d61 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -38,7 +38,7 @@
     ActiveSupport::Dependencies.clear
     
     def test_sign_in(user)
-      controller.current_user = user
+      controller.sign_in(user)
     end
   end
 end