diff --git a/taiga/projects/attachments/api.py b/taiga/projects/attachments/api.py
index 54dccfc1..0afe58e6 100644
--- a/taiga/projects/attachments/api.py
+++ b/taiga/projects/attachments/api.py
@@ -104,7 +104,7 @@ class TaskAttachmentViewSet(BaseAttachmentViewSet):
 
 
 class WikiAttachmentViewSet(BaseAttachmentViewSet):
-    content_type = "wiki.wiki"
+    content_type = "wiki.wikipage"
     create_notification_template = "create_wiki_notification"
     update_notification_template = "update_wiki_notification"
     destroy_notification_template = "destroy_wiki_notification"