diff --git a/apps/maxkb/settings/base.py b/apps/maxkb/settings/base.py
index a0f5f6cd3..24a7a2bd3 100644
--- a/apps/maxkb/settings/base.py
+++ b/apps/maxkb/settings/base.py
@@ -59,6 +59,7 @@ MIDDLEWARE = [
     'common.middleware.gzip.GZipMiddleware',
     'common.middleware.chat_headers_middleware.ChatHeadersMiddleware',
     'common.middleware.cross_domain_middleware.CrossDomainMiddleware',
+    'common.middleware.doc_headers_middleware.DocHeadersMiddleware',
 
 ]