diff --git a/rest_framework/documentation.py b/rest_framework/documentation.py
index 9f9c828bc..8aee5c932 100644
--- a/rest_framework/documentation.py
+++ b/rest_framework/documentation.py
@@ -76,4 +76,4 @@ def include_docs_urls(
         url(r'^$', docs_view, name='docs-index'),
         url(r'^schema.js$', schema_js_view, name='schema-js')
     ]
-    return include(urls, namespace='api-docs')
+    return include((urls, 'api-docs'), namespace='api-docs')