diff --git a/tutormfe/hooks.py b/tutormfe/hooks.py
index 5afaba54..d88c7b44 100644
--- a/tutormfe/hooks.py
+++ b/tutormfe/hooks.py
@@ -14,4 +14,4 @@
 
 MFE_APPS: Filter[dict[str, MFE_ATTRS_TYPE], []] = Filter()
 
-PLUGIN_SLOTS: Filter[tuple[str, str, str], []] = Filter()
+PLUGIN_SLOTS: Filter[list[tuple[str, str, str]], []] = Filter()