diff --git a/frontend/src/stores/distributionSite.ts b/frontend/src/stores/distributionSite.ts
index 37f34b3..7bdcc03 100644
--- a/frontend/src/stores/distributionSite.ts
+++ b/frontend/src/stores/distributionSite.ts
@@ -96,7 +96,7 @@ export const useDistributionSiteStore = defineStore('distributionSite', {
       }
 
       // 2. 识别目标分销站点编码
-      let targetCode = ''
+      let targetCode: string
       if (querySite) {
         targetCode = querySite
         sessionStorage.setItem('hfb_site_code', querySite)