diff --git a/frontend/src/queries/teacher-invitations.ts b/frontend/src/queries/teacher-invitations.ts
index 0d6c3d1c..2585a8db 100644
--- a/frontend/src/queries/teacher-invitations.ts
+++ b/frontend/src/queries/teacher-invitations.ts
@@ -59,8 +59,8 @@ export function useTeacherInvitationQuery(
     data: MaybeRefOrGetter<TeacherInvitationData | undefined>,
 ): UseQueryReturnType<TeacherInvitationResponse, Error> {
     return useQuery({
-        queryKey: teacherInvitationQueryKey(toValue(data)!),
-        queryFn: async () => controller.getBy(toValue(data)!),
+        queryKey: teacherInvitationQueryKey(toValue(data)),
+        queryFn: async () => controller.getBy(toValue(data)),
         enabled: () => Boolean(toValue(data)),
     });
 }