diff --git a/aleksis/apps/alsijil/util/predicates.py b/aleksis/apps/alsijil/util/predicates.py
index ca8af7f67d88cf1cce20ff6661996e58ed359ecc..e047706a960b625f07ee1e1aaa7854d1e23d9ed6 100644
--- a/aleksis/apps/alsijil/util/predicates.py
+++ b/aleksis/apps/alsijil/util/predicates.py
@@ -218,4 +218,4 @@ def has_any_object_absence(user: User) -> bool:
 @predicate
 def is_teacher(user: User, obj: Person) -> bool:
     """Predicate which checks if the provided object is a teacher."""
-    return user.person.is_teacher()
+    return user.person.is_teacher