diff --git a/chat/indico_chat/controllers/base.py b/chat/indico_chat/controllers/base.py
index fa0c8be..1383fec 100644
--- a/chat/indico_chat/controllers/base.py
+++ b/chat/indico_chat/controllers/base.py
@@ -25,9 +25,9 @@ from indico_chat.util import is_chat_admin
 
 
 class RHChatManageEventBase(RHManageEventBase):
-    def _checkProtection(self):
+    def _check_access(self):
         if not is_chat_admin(session.user):
-            RHManageEventBase._checkProtection(self)
+            RHManageEventBase._check_access(self)
 
 
 class RHEventChatroomMixin:
diff --git a/previewer_jupyter/indico_previewer_jupyter/controllers.py b/previewer_jupyter/indico_previewer_jupyter/controllers.py
index a78c3e8..9cc1410 100644
--- a/previewer_jupyter/indico_previewer_jupyter/controllers.py
+++ b/previewer_jupyter/indico_previewer_jupyter/controllers.py
@@ -29,8 +29,8 @@ from indico_previewer_jupyter.cpp_highlighter import CppHighlighter
 
 
 class RHEventPreviewIPyNB(RH):
-    def _checkProtection(self):
-        RH._checkProtection(self)
+    def _check_access(self):
+        RH._check_access(self)
         if not self.attachment.can_access(session.user):
             raise Forbidden