diff --git a/OpenRA.Mods.RA/Missions/Allies01Script.cs b/OpenRA.Mods.RA/Missions/Allies01Script.cs
index 0b14a5dce9..030db00688 100644
--- a/OpenRA.Mods.RA/Missions/Allies01Script.cs
+++ b/OpenRA.Mods.RA/Missions/Allies01Script.cs
@@ -281,7 +281,7 @@ namespace OpenRA.Mods.RA.Missions
 
 		void SetAlliedUnitsToDefensiveStance()
 		{
-			foreach (var actor in world.Actors.Where(a => a.IsInWorld && a.Owner == allies && !a.IsDead()))
+			foreach (var actor in world.Actors.Where(a => a.IsInWorld && a.Owner == allies && !a.IsDead() && a.HasTrait<AutoTarget>()))
 			{
 				actor.Trait<AutoTarget>().stance = UnitStance.Defend;
 			}