diff --git a/planet/System.ocg/HitChecks.c b/planet/System.ocg/HitChecks.c
index 8e4bbe324..015a434b0 100644
--- a/planet/System.ocg/HitChecks.c
+++ b/planet/System.ocg/HitChecks.c
@@ -66,6 +66,7 @@ global func FxHitCheckDoCheck(object target, proplist effect)
 								Sort_Distance(oldx, oldy)))
 		{
 			// Excludes
+			if (!obj) continue; // hit callback of one object might have removed other objects
 			if(obj == target) continue;
 			if(obj == shooter) continue;