diff --git a/mobile-uni/src/pages/common/building/index.vue b/mobile-uni/src/pages/common/building/index.vue
index fd5f842a..12fd4640 100644
--- a/mobile-uni/src/pages/common/building/index.vue
+++ b/mobile-uni/src/pages/common/building/index.vue
@@ -23,7 +23,10 @@ onLoad((query) => {
 });
 
 const goBack = () => {
-  uni.navigateBack({ delta: 1 });
+  uni.navigateBack({
+    delta: 1,
+    fail: () => uni.switchTab({ url: '/pages/user/today/index' })
+  });
 };
 </script>