diff --git a/addons/grenades/functions/fnc_incendiary.sqf b/addons/grenades/functions/fnc_incendiary.sqf
index b12d4169bb..c143a3c63f 100644
--- a/addons/grenades/functions/fnc_incendiary.sqf
+++ b/addons/grenades/functions/fnc_incendiary.sqf
@@ -34,6 +34,8 @@
 
 params ["_projectile", "_timeToLive"];
 
+if (isNull _projectile) exitWith {TRACE_1("null",_projectile);};
+
 private _position = position _projectile;
 
 // --- fire