diff --git a/OpenRA.Mods.RA/Activities/CaptureActor.cs b/OpenRA.Mods.RA/Activities/CaptureActor.cs
index e0118954d4..c02cfd83f2 100644
--- a/OpenRA.Mods.RA/Activities/CaptureActor.cs
+++ b/OpenRA.Mods.RA/Activities/CaptureActor.cs
@@ -39,6 +39,9 @@ namespace OpenRA.Mods.RA.Activities
 
 			self.World.AddFrameEndTask(w =>
 			{
+				if (actor.IsDead())
+					return;
+
 				var lowEnoughHealth = health.HP <= capturableInfo.CaptureThreshold * health.MaxHP;
 				if (!capturesInfo.Sabotage || lowEnoughHealth || actor.Owner.NonCombatant)
 				{
diff --git a/OpenRA.Mods.RA/Activities/ExternalCaptureActor.cs b/OpenRA.Mods.RA/Activities/ExternalCaptureActor.cs
index 9274889bd1..6d1e619b3f 100644
--- a/OpenRA.Mods.RA/Activities/ExternalCaptureActor.cs
+++ b/OpenRA.Mods.RA/Activities/ExternalCaptureActor.cs
@@ -59,6 +59,9 @@ namespace OpenRA.Mods.RA.Activities
 
 					self.World.AddFrameEndTask(w =>
 					{
+						if (target.Actor.IsDead())
+							return;
+
 						var oldOwner = target.Actor.Owner;
 
 						target.Actor.ChangeOwner(self.Owner);