diff --git a/docs/api-guide/permissions.md b/docs/api-guide/permissions.md
index 102c6ea98..29dd95b08 100644
--- a/docs/api-guide/permissions.md
+++ b/docs/api-guide/permissions.md
@@ -113,7 +113,7 @@ Provided they inherit from `rest_framework.permissions.BasePermission`, permissi
             return request.method in SAFE_METHODS
 
     class ExampleView(APIView):
-        permission_classes = (IsAuthenticated|ReadOnly)
+        permission_classes = (IsAuthenticated|ReadOnly,)
 
         def get(self, request, format=None):
             content = {