diff --git a/src/components/timetable-list.vue b/src/components/timetable-list.vue
index 0766af8..2aa919f 100644
--- a/src/components/timetable-list.vue
+++ b/src/components/timetable-list.vue
@@ -24,7 +24,7 @@ const linkedTimetable = computed(() => {
           return (
             entry.lesson == index + 1 &&
             entryDay == props.date.getTime() &&
-            (entry.teacher == e.teacher || !entry.teacher || !e.teacher)
+            (entry.teacher == e.teacher || !entry.teacher)
           );
         },
       );