diff --git a/advlabdb/assistantModelViews.py b/advlabdb/assistantModelViews.py
index 627ae77..325ecfa 100644
--- a/advlabdb/assistantModelViews.py
+++ b/advlabdb/assistantModelViews.py
@@ -112,14 +112,13 @@ class AssistantExperimentMarkView(SecureAssistantModelView):
 
     column_default_sort = [("oral_mark", False), ("protocol_mark", False)]
 
-    def queryFilter(self):
-        return ExperimentMark.group_experiment.has(
-            GroupExperiment.semester_experiment.has(
-                and_(
-                    SemesterExperiment.semester == current_user.active_semester,
-                    SemesterExperiment.assistants.any(Assistant.user == current_user),
-                )
-            )
+    def query_modifier(self, query):
+        return (
+            query.join(GroupExperiment)
+            .join(SemesterExperiment)
+            .where(SemesterExperiment.semester == current_user.active_semester)
+            .join(SemesterExperiment.assistants)
+            .where(Assistant.user == current_user)
         )
 
     def update_model(self, form, model):
@@ -180,8 +179,8 @@ class AssistantUserView(SecureAssistantModelView):
         "assistant.semester_experiments": "Semester Experiments",
     }
 
-    def queryFilter(self):
-        return User.id == current_user.id
+    def query_modifier(self, query):
+        return query.where(User.id == current_user.id)
 
     def on_model_change(self, form, model, is_created):
         if form.generate_new_password.data: