diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/changer/TrackChanger.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/changer/TrackChanger.java
index d3ea31d..0860fa2 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/changer/TrackChanger.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/changer/TrackChanger.java
@@ -25,7 +25,7 @@ public class TrackChanger {
         String head = matcher.group(2);
         String tail = matcher.group(3);
         String tailMeta = matcher.group(4);
-        return "G" + tail + head + tailMeta;
+        return "G" + tail + head + "-" + tailMeta;
       }
       return null;
     }