diff --git a/app/helpers/sessions_helper.rb b/app/helpers/sessions_helper.rb
index 1b462c4..fc79f4d 100644
--- a/app/helpers/sessions_helper.rb
+++ b/app/helpers/sessions_helper.rb
@@ -2,7 +2,7 @@ module SessionsHelper
   
   def sign_in(user)
     cookies.permanent.signed[:remember_token] = [user.id, user.salt]
-    current_user = user
+    self.current_user = user
   end
   
   def current_user=(user)
@@ -19,7 +19,7 @@ def signed_in?
   
   def sign_out
     cookies.delete(:remember_token)
-    current_user = nil
+    self.current_user = nil
   end
 
   def current_user?(user)