diff --git a/Resources/Prototypes/Entities/Objects/Misc/pen.yml b/Resources/Prototypes/Entities/Objects/Misc/pen.yml
index b0a466f891..55117e6360 100644
--- a/Resources/Prototypes/Entities/Objects/Misc/pen.yml
+++ b/Resources/Prototypes/Entities/Objects/Misc/pen.yml
@@ -59,6 +59,7 @@
 - type: entity
   id: BaseAdvancedPen
   parent: PenEmbeddable
+  abstract: true
   components:
   - type: Tag
     tags: