diff --git a/addons/maptools/functions/fnc_openMapGpsUpdate.sqf b/addons/maptools/functions/fnc_openMapGpsUpdate.sqf
index 092f0720c24..4a77f4a6c36 100644
--- a/addons/maptools/functions/fnc_openMapGpsUpdate.sqf
+++ b/addons/maptools/functions/fnc_openMapGpsUpdate.sqf
@@ -6,15 +6,15 @@
 private ["_mapGpsDisplay", "_ctrl"];
 
 if ((!("ItemGPS" in assigneditems ACE_player)) || {isNull (uiNamespace getVariable [QGVAR(ui_mapGpsDisplay), displayNull])}) exitWith {
-    ("RscACE_MapGps" call BIS_fnc_rscLayer) cutText ["","PLAIN"];  //close GPS RSC
-    [(_this select 1)] call CBA_fnc_removePerFrameHandler;  //remove frameHandler
+    ("RscACE_MapGps" call BIS_fnc_rscLayer) cutText ["","PLAIN"];  // Close GPS RSC
+    [(_this select 1)] call CBA_fnc_removePerFrameHandler;  // Remove frameHandler
 };
 disableSerialization;
 
 _mapGpsDisplay = uiNamespace getVariable [QGVAR(ui_mapGpsDisplay), displayNull];
 _ctrl = _mapGpsDisplay displayCtrl 913590;
-_ctrl ctrlSetText str(round(getDir ACE_player));  //set Heading
+_ctrl ctrlSetText str (round (getDir ACE_player));  // Set Heading
 _ctrl = _mapGpsDisplay displayCtrl 913591;
-_ctrl ctrlSetText str(round((getPosASL ACE_player) select 2)); //set Altitude
+_ctrl ctrlSetText str (round ((getPosASL ACE_player) select 2) + EGVAR(common,mapAltitude)); // Set Altitude
 _ctrl = _mapGpsDisplay displayCtrl 913592;
-_ctrl ctrlSetText mapGridPosition ACE_player; //set grid cords
+_ctrl ctrlSetText mapGridPosition ACE_player; // Set grid cords