diff --git a/Content.Server/Objectives/Systems/KillPersonConditionSystem.cs b/Content.Server/Objectives/Systems/KillPersonConditionSystem.cs
index bd062e7456..9d9c6aa7f3 100644
--- a/Content.Server/Objectives/Systems/KillPersonConditionSystem.cs
+++ b/Content.Server/Objectives/Systems/KillPersonConditionSystem.cs
@@ -41,18 +41,18 @@ public sealed class KillPersonConditionSystem : EntitySystem
 
     private void OnPersonAssigned(Entity<PickRandomPersonComponent> ent, ref ObjectiveAssignedEvent args)
     {
-        AssignRandomTarget(ent, args, _ => true);
+        AssignRandomTarget(ent, ref args, _ => true);
     }
 
     private void OnHeadAssigned(Entity<PickRandomHeadComponent> ent, ref ObjectiveAssignedEvent args)
     {
-        AssignRandomTarget(ent, args, mindId =>
+        AssignRandomTarget(ent, ref args, mindId =>
             TryComp<MindComponent>(mindId, out var mind) &&
             mind.OwnedEntity is { } ownedEnt &&
             HasComp<CommandStaffComponent>(ownedEnt));
     }
 
-    private void AssignRandomTarget(EntityUid uid, ObjectiveAssignedEvent args, Predicate<EntityUid> filter, bool fallbackToAny = true)
+    private void AssignRandomTarget(EntityUid uid, ref ObjectiveAssignedEvent args, Predicate<EntityUid> filter, bool fallbackToAny = true)
     {
         // invalid prototype
         if (!TryComp<TargetObjectiveComponent>(uid, out var target))
@@ -97,6 +97,13 @@ public sealed class KillPersonConditionSystem : EntitySystem
         // Pick between humans matching our filter or fall back to all humans alive
         var selectedHumans = filteredHumans.Count > 0 ? filteredHumans : allHumans;
 
+        // Still no valid targets even after the fallback
+        if (selectedHumans.Count == 0)
+        {
+            args.Cancelled = true;
+            return;
+        }
+
         _target.SetTarget(uid, _random.Pick(selectedHumans), target);
     }