diff --git a/docs/api-guide/viewsets.md b/docs/api-guide/viewsets.md
index 22cc3d8aa..d5815127b 100644
--- a/docs/api-guide/viewsets.md
+++ b/docs/api-guide/viewsets.md
@@ -152,7 +152,7 @@ A more complete example of extra actions:
             user = self.get_object()
             serializer = PasswordSerializer(data=request.data)
             if serializer.is_valid():
-                user.set_password(serializer.data['password'])
+                user.set_password(serializer.validated_data['password'])
                 user.save()
                 return Response({'status': 'password set'})
             else: