diff --git a/src/fiber_package/event/activity.py b/src/fiber_package/event/activity.py
index 60fb0b8..c0aeae7 100644
--- a/src/fiber_package/event/activity.py
+++ b/src/fiber_package/event/activity.py
@@ -10,6 +10,7 @@ from .enums import CommunicationCategory
 from fiber_package.refs import SignupRefList
 from fiber_package.signup.signup import SignupModel
 from fiber_package.signup.util import validate_answer
+from fiber_package.signup.enums import is_question_category
 
 from fiber_package.signup.element.form_base_question import FormBaseQuestion
 
@@ -46,7 +47,7 @@ class ActivityModel(CommunicationModel):
         question_dict: dict[str, FormBaseQuestion] = {}
 
         for element in self.form:
-            if isinstance(element, FormTextUnion):
+            if not is_question_category(element.category):
                 continue
             # so we know it is istance of FormBaseQuestion
             answerable.add(element.name)