diff --git a/rest_auth/registration/serializers.py b/rest_auth/registration/serializers.py
index 9056164..c0b67af 100644
--- a/rest_auth/registration/serializers.py
+++ b/rest_auth/registration/serializers.py
@@ -63,7 +63,8 @@ class SocialLoginSerializer(serializers.Serializer):
         # http://stackoverflow.com/questions/8666316/facebook-oauth-2-0-code-and-token
 
         # Case 1: We received the access_token
-        if('access_token' in attrs):
+        access_token = attrs.get('access_token', None)
+        if(access_token is not None and len(access_token) > 0):
             access_token = attrs.get('access_token')
 
         # Case 2: We received the authorization code
@@ -93,13 +94,12 @@ class SocialLoginSerializer(serializers.Serializer):
                 self.callback_url,
                 scope
             )
-            token = client.get_access_token(code)
-            access_token = token['access_token']
+            access_token = client.get_access_token(code)
 
         else:
             raise serializers.ValidationError(_('Incorrect input. access_token or code is required.'))
 
-        token = adapter.parse_token({'access_token': access_token})
+        token = adapter.parse_token(access_token)
         token.app = app
 
         try: