diff --git a/Content.Server/Polymorph/Systems/PolymorphSystem.cs b/Content.Server/Polymorph/Systems/PolymorphSystem.cs
index b7640ff984..8cae15d70d 100644
--- a/Content.Server/Polymorph/Systems/PolymorphSystem.cs
+++ b/Content.Server/Polymorph/Systems/PolymorphSystem.cs
@@ -118,10 +118,12 @@ public sealed partial class PolymorphSystem : EntitySystem
 
     private void OnPolymorphActionEvent(Entity<PolymorphableComponent> ent, ref PolymorphActionEvent args)
     {
-        if (!_proto.TryIndex(args.ProtoId, out var prototype))
+        if (!_proto.TryIndex(args.ProtoId, out var prototype) || args.Handled)
             return;
 
         PolymorphEntity(ent, prototype.Configuration);
+
+        args.Handled = true;
     }
 
     private void OnRevertPolymorphActionEvent(Entity<PolymorphedEntityComponent> ent,