diff --git a/conf/build.manifest b/conf/build.manifest
index fde5d29..3e66172 100644
--- a/conf/build.manifest
+++ b/conf/build.manifest
@@ -677,6 +677,7 @@ sources:
         - truenas_samba
         - truenas_sssd
         - truenas_pwenc
+        - truenas_pyos
         - truenas_pyscstadmin
       subdir: src/middlewared
     - name: middlewared-docs