diff --git a/1.4/Assemblies/CombatAI.dll b/1.4/Assemblies/CombatAI.dll
index e1c64a2..870129b 100644
Binary files a/1.4/Assemblies/CombatAI.dll and b/1.4/Assemblies/CombatAI.dll differ
diff --git a/Source/Rule56/SightGrid.cs b/Source/Rule56/SightGrid.cs
index 692aa22..2e8b684 100644
--- a/Source/Rule56/SightGrid.cs
+++ b/Source/Rule56/SightGrid.cs
@@ -369,7 +369,7 @@ private bool TryCastSight(IBucketableThing item)
 			if (item.thing != null)
 			{
 				Verb verb = item.thing.TryGetAttackVerb();
-				if (!verb.IsMeleeAttack)
+				if (verb != null && !verb.IsMeleeAttack)
 				{
 					if (verb.state != VerbState.Idle || verb.WarmingUp)
 					{