diff --git a/libraries/SITL/SITL.cpp b/libraries/SITL/SITL.cpp
index eb3f2156b7..391eca6d32 100644
--- a/libraries/SITL/SITL.cpp
+++ b/libraries/SITL/SITL.cpp
@@ -278,7 +278,7 @@ const AP_Param::GroupInfo SITL::var_gps[] = {
     AP_GROUPINFO("GPS_GLITCH",     6, SITL,  gps_glitch[0],  0),
     AP_GROUPINFO("GPS_HZ",         7, SITL,  gps_hertz[0],  5),
     AP_GROUPINFO("GPS_DRIFTALT",   8, SITL,  gps_drift_alt[0], 0),
-    AP_GROUPINFO("GPS_POS1",       9, SITL,  gps_pos_offset[0], 0),
+    AP_GROUPINFO("GPS_POS",        9, SITL,  gps_pos_offset[0], 0),
     AP_GROUPINFO("GPS_NOISE",     10, SITL,  gps_noise[0], 0),
     AP_GROUPINFO("GPS_LOCKTIME",  11, SITL,  gps_lock_time[0], 0),
     AP_GROUPINFO("GPS_ALT_OFS",   12, SITL,  gps_alt_offset[0], 0),
@@ -294,7 +294,7 @@ const AP_Param::GroupInfo SITL::var_gps[] = {
     AP_GROUPINFO("GPS2_GLTCH",    35, SITL,  gps_glitch[1],  0),
     AP_GROUPINFO("GPS2_HZ",       36, SITL,  gps_hertz[1],  5),
     AP_GROUPINFO("GPS2_DRFTALT",  37, SITL,  gps_drift_alt[1], 0),
-    AP_GROUPINFO("GPS2_POS1",     38, SITL,  gps_pos_offset[1], 0),
+    AP_GROUPINFO("GPS2_POS",      38, SITL,  gps_pos_offset[1], 0),
     AP_GROUPINFO("GPS2_NOISE",    39, SITL,  gps_noise[1], 0),
     AP_GROUPINFO("GPS2_LCKTIME",  40, SITL,  gps_lock_time[1], 0),
     AP_GROUPINFO("GPS2_ALT_OFS",  41, SITL,  gps_alt_offset[1], 0),