diff --git a/addons/overheating/XEH_preInit.sqf b/addons/overheating/XEH_preInit.sqf
index cdd1fa78dd..a7feade1c3 100644
--- a/addons/overheating/XEH_preInit.sqf
+++ b/addons/overheating/XEH_preInit.sqf
@@ -4,16 +4,4 @@ ADDON = false;
 
 #include "XEH_PREP.hpp"
 
-if (isNil "CBA_fnc_getMagazineIndex") then {
-    CBA_fnc_getMagazineIndex = {
-        params [["_unit", objNull, [objNull]], ["_magazine", "", [""]]];
-
-        private _displayName = getText (configFile >> "CfgMagazines" >> _magazine >> "displayName");
-
-        if (_displayName isEqualTo "") exitWith {[]};
-
-        (magazinesDetail _unit select {_x find _displayName == 0}) apply {_x = _x splitString "[:]"; _x select (count _x - 1)};
-    };
-};
-
 ADDON = true;