diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index b391ce4..b591c22 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -109,6 +109,7 @@ message Station {
   string code = 2;
   bool hasControl = 3; // 是否有控制
   bool concentrationStations=4;  //是否集中站
+  string kilometerCode=5; //公里标
 }
 
 message StationLine {