diff --git a/Resources/Prototypes/Catalog/Fills/Lockers/heads.yml b/Resources/Prototypes/Catalog/Fills/Lockers/heads.yml
index b06741dcb4..e1e39b7202 100644
--- a/Resources/Prototypes/Catalog/Fills/Lockers/heads.yml
+++ b/Resources/Prototypes/Catalog/Fills/Lockers/heads.yml
@@ -294,6 +294,7 @@
       - id: JetpackSecurityFilled
       - id: BoxEncryptionKeySecurity
       - id: HoloprojectorSecurity
+      - id: BookSecretDocuments
 
 - type: entity
   id: LockerHeadOfSecurityFilled