diff --git a/fet2020/intern/urls.py b/fet2020/intern/urls.py
index ff7d36f0..538bdb6a 100644
--- a/fet2020/intern/urls.py
+++ b/fet2020/intern/urls.py
@@ -5,6 +5,6 @@ from . import views
 
 urlpatterns = [
     path("", views.index, name="intern"),
-    path("<str:slug>", views.show_topic, name="topic"),
-    path("<str:topic_slug>/<str:slug>", views.show_docu, name="docu"),
+    path("<slug:slug>/", views.show_topic, name="topic"),
+    path("<slug:topic_slug>/<slug:slug>/", views.show_docu, name="docu"),
 ]