diff --git a/src/views/faceteach/FaceTeach.vue b/src/views/faceteach/FaceTeach.vue
index 069c1fe..07c3c94 100644
--- a/src/views/faceteach/FaceTeach.vue
+++ b/src/views/faceteach/FaceTeach.vue
@@ -368,7 +368,7 @@ const {
 const { data } = useRequest(STU_OFFCOURSE_DETAIL, { courseId });
 
 const teacherInfo = useUserInfo(computed(() => data.value?.planDto?.teacherId));
-const isAllowSign = computed(() => dayjs().isBetween(dayjs(data.value.planDto?.beginTime).subtract(data.value.beforeStart || 0, "minute"), dayjs(data.value.afterStart ? data.value.planDto?.beginTime : data.value.planDto?.endTime).add(data.value.afterStart || 0, "minute")));
+const isAllowSign = computed(() => dayjs().isBetween(dayjs(data.value.planDto?.beginTime).subtract(data.value.planDto?.beforeStart || 0, "minute"), dayjs(data.value.planDto.afterStart ? data.value.planDto?.beginTime : data.value.planDto?.endTime).add(data.value.planDto.afterStart || 0, "minute")));
 
 const activeName = ref("first");