diff --git a/oj/urls.py b/oj/urls.py
index 84b13638..b3083209 100644
--- a/oj/urls.py
+++ b/oj/urls.py
@@ -10,7 +10,7 @@ urlpatterns = [
     url(r'^docs/', include('rest_framework_swagger.urls')),
     url(r'^admin/$', TemplateView.as_view(template_name="admin/index.html"), name="admin_index_page"),
     url(r'^login/$', TemplateView.as_view(template_name="oj/account/login.html"), name="user_login_page"),
-	url(r'^register/$', TemplateView.as_view(template_name="oj/account/register.html"), name="user_register_page"),
+    url(r'^register/$', TemplateView.as_view(template_name="oj/account/register.html"), name="user_register_page"),
     url(r'^api/login/$', UserLoginAPIView.as_view(), name="login_api"),
     url(r'^api/login/$', UserLoginAPIView.as_view(), name="user_login_api"),
     url(r'^problem/(?P<problem_id>\d+)/$', "problem.views.problem_page", name="problem_page"),