diff --git a/AntennaTracker/Parameters.cpp b/AntennaTracker/Parameters.cpp
index 79d1739ed21f0..2d20396ecfc69 100644
--- a/AntennaTracker/Parameters.cpp
+++ b/AntennaTracker/Parameters.cpp
@@ -23,6 +23,7 @@ const AP_Param::Info Tracker::var_info[] = {
     // @DisplayName: Ground station MAVLink system ID
     // @Description: The identifier of the ground station in the MAVLink protocol. Don't change this unless you also modify the ground station to match.
     // @Range: 1 255
+    // @Increment: 1
     // @User: Advanced
     GSCALAR(sysid_my_gcs,           "SYSID_MYGCS",    255),