diff --git a/backend/api/posts/urls.py b/backend/api/posts/urls.py
index d682a8f..b1dcd77 100644
--- a/backend/api/posts/urls.py
+++ b/backend/api/posts/urls.py
@@ -9,7 +9,9 @@ from api.posts.views import (
 )
 
 urlpatterns = [
-    path("<str:post_id>/", PostDetailView.as_view(), name="post_detail"),
+    path(
+        "<str:source_site>/<str:post_id>/", PostDetailView.as_view(), name="post_detail"
+    ),
     path(
         "<str:source_site>/<str:creator_slug_or_id>/<str:post_id>/",
         PostDetailSiteCreatorView.as_view(),