diff --git a/ArduSub/Parameters.cpp b/ArduSub/Parameters.cpp
index 79c39bb4a4..96e044d1d8 100644
--- a/ArduSub/Parameters.cpp
+++ b/ArduSub/Parameters.cpp
@@ -529,9 +529,9 @@ const AP_Param::Info Sub::var_info[] = {
     GOBJECT(barometer, "BARO", AP_Baro),
 
     // GPS driver
-    // @Group: GPS_
+    // @Group: GPS
     // @Path: ../libraries/AP_GPS/AP_GPS.cpp
-    GOBJECT(gps, "GPS_", AP_GPS),
+    GOBJECT(gps, "GPS", AP_GPS),
 
     // Leak detector
     // @Group: LEAK