diff --git a/protos/device_info.proto b/protos/device_info.proto
index e707502..e518c40 100644
--- a/protos/device_info.proto
+++ b/protos/device_info.proto
@@ -16,7 +16,7 @@ message Section {
   graphicData.Section.SectionType type = 3;
 
   // 公里标
-  repeated string kilometerCode = 4;
+  repeated int64 kilometerCode = 4;
 
   // 关联区段
   repeated Section children = 5;
diff --git a/protos/ws_message.proto b/protos/ws_message.proto
index eadf886..4926055 100644
--- a/protos/ws_message.proto
+++ b/protos/ws_message.proto
@@ -68,7 +68,7 @@ message WsLineNetTrainOffsetMessage {
   bool show = 5;
 
   // 列车公里标
-  string kilometerCode = 6;
+  int64 kilometerCode = 6;
 
   // 运行方向
   int32 dir = 7;