diff --git a/webrecorder/webrecorder/admincontroller.py b/webrecorder/webrecorder/admincontroller.py
index 36f342ee..6387fd2d 100644
--- a/webrecorder/webrecorder/admincontroller.py
+++ b/webrecorder/webrecorder/admincontroller.py
@@ -469,6 +469,7 @@ def get_defaults():
             return {'defaults': data}
 
         @self.app.put('/api/v1/admin/defaults')
+        @self.admin_view
         def update_defaults():
             data = request.json
             if 'max_size' in data: