diff --git a/api/app/lib/controllers/overview/operation.js b/api/app/lib/controllers/overview/operation.js
index 7e06102d..0629e995 100644
--- a/api/app/lib/controllers/overview/operation.js
+++ b/api/app/lib/controllers/overview/operation.js
@@ -170,11 +170,11 @@ async function busLine (ctx) {
         const { busLicence } = ctx.query
 
         const zhidiaoData = app.fs.zhidiaoData
-        let rslt = {}
+        let rslt = []
         if (zhidiaoData) {
             let corBus = (zhidiaoData.busRun || []).find(b => b.busNoChar == busLicence)
             if (corBus) {
-                rslt = (zhidiaoData.busLine || {})[corBus.lineNo] || {}
+                rslt = (zhidiaoData.busLine || {})[corBus.lineNo] || []
             }
         }