diff --git a/example-configs/qubes-os-main.yml b/example-configs/qubes-os-main.yml
index 2d3956fd..e9aca7c4 100644
--- a/example-configs/qubes-os-main.yml
+++ b/example-configs/qubes-os-main.yml
@@ -91,6 +91,9 @@ components:
       url: https://github.com/QubesOS/qubes-linux-kernel
       branch: main
       timeout: 21600
+  - vmm-xen-unified:
+      # requires extra setup for signing, disable by default
+      packages: false
   - artwork
   - grub2
   - grub2-theme
diff --git a/example-configs/qubes-os-r4.3.yml b/example-configs/qubes-os-r4.3.yml
index b870f914..eff6d79e 100644
--- a/example-configs/qubes-os-r4.3.yml
+++ b/example-configs/qubes-os-r4.3.yml
@@ -88,6 +88,9 @@ components:
       url: https://github.com/QubesOS/qubes-linux-kernel
       branch: main
       timeout: 21600
+  - vmm-xen-unified:
+      # requires extra setup for signing, disable by default
+      packages: false
   - artwork
   - grub2
   - grub2-theme