diff --git a/gps_client.py b/gps_client.py
index a417cdce..01f4820f 100644
--- a/gps_client.py
+++ b/gps_client.py
@@ -59,5 +59,5 @@ except KeyboardInterrupt:
 
 # Got ^C, or fell out of the loop.  Cleanup, and leave.
 session.close()
-print("%.6f %.6f %.1f" % (lat, lon, alt))
+print("%d %.6f %.6f %.1f" % (mode, lat, lon, alt))
 exit(0)