diff --git a/OpenRA.Mods.RA/AI/States/StateBase.cs b/OpenRA.Mods.RA/AI/States/StateBase.cs
index 97a330aab8..040349b17a 100644
--- a/OpenRA.Mods.RA/AI/States/StateBase.cs
+++ b/OpenRA.Mods.RA/AI/States/StateBase.cs
@@ -69,7 +69,7 @@ namespace OpenRA.Mods.RA.AI
 
 			var arms = a.TraitsImplementing<Armament>();
 			foreach (var arm in arms)
-				if (arm.Weapon.ValidTargets.Intersect(targetable.TargetTypes) != null)
+				if (arm.Weapon.ValidTargets.Intersect(targetable.TargetTypes).Any())
 					return true;
 
 			return false;