diff --git a/Lesson4/step2/project.py b/Lesson4/step2/project.py
index b429dff..6ed1d5b 100644
--- a/Lesson4/step2/project.py
+++ b/Lesson4/step2/project.py
@@ -425,7 +425,7 @@ def disconnect():
         if login_session['provider'] == 'google':
             gdisconnect()
             del login_session['gplus_id']
-            del login_session['credentials']
+            del login_session['access_token']
         if login_session['provider'] == 'facebook':
             fbdisconnect()
             del login_session['facebook_id']