diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index 531a660..b6a08c4 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -5,7 +5,7 @@ class SessionsController < ApplicationController
 
   def create
     @user =
-      User.find_by_provider_and_uid(@auth["provider"], @auth["uid"]) ||
+      User.find_by_provider_and_uid(@auth["provider"], @auth["uid"].to_s) ||
       User.create_with_omniauth(@auth)
 
     unless @user.persisted?