diff --git a/addons/medical/functions/fnc_addDamageToUnit.sqf b/addons/medical/functions/fnc_addDamageToUnit.sqf
index 1969e3ff74..7f9eae47ee 100644
--- a/addons/medical/functions/fnc_addDamageToUnit.sqf
+++ b/addons/medical/functions/fnc_addDamageToUnit.sqf
@@ -57,7 +57,7 @@ private _debugCode = {
 [{diag_frameno > (_this select 0)}, _debugCode, [_checkAtFrame, _unit, _startDmg, _damageToAdd, _partNumber]] call CBA_fnc_waitUntilAndExecute;
 #endif
 
-private _return = [_unit, _selection, (_currentDamage + _damageToAdd), _unit, _typeOfDamage, _hitpointIndex] call FUNC(handleDamage);
+private _return = [_unit, _selection, (_currentDamage + _damageToAdd), _unit, _typeOfDamage, _hitpointIndex, objNull] call FUNC(handleDamage);
 TRACE_1("handleDamage called",_return);
 
 _return
diff --git a/addons/medical/functions/fnc_handleDamage.sqf b/addons/medical/functions/fnc_handleDamage.sqf
index abb91ff1c3..de86665f99 100644
--- a/addons/medical/functions/fnc_handleDamage.sqf
+++ b/addons/medical/functions/fnc_handleDamage.sqf
@@ -9,6 +9,7 @@
  * 3: Shooter <OBJECT>
  * 4: Projectile <OBJECT/STRING>
  * 5: HitPointIndex (-1 for structural) <NUMBER>
+ * 6: Shooter <OBJECT>
  *
  * Return Value:
  * Damage To Be Inflicted <NUMBER>