diff --git a/apparmor.d/tunables/multiarch.d/system b/apparmor.d/tunables/multiarch.d/system
index 78bb73b0..cc4192d2 100644
--- a/apparmor.d/tunables/multiarch.d/system
+++ b/apparmor.d/tunables/multiarch.d/system
@@ -123,7 +123,7 @@
 @{busname}=:1.@{u16} :not.active.yet
 
 # Unix dbus address prefix
-@{udbus}=@{hex15} @{hex16}
+@{udbus}=@{h}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}
 
 # Universally unique identifier
 @{uuid}=@{h}@{h}@{h}@{h}@{h}@{h}@{h}@{h}[-_]@{h}@{h}@{h}@{h}[-_]@{h}@{h}@{h}@{h}[-_]@{h}@{h}@{h}@{h}[-_]@{h}@{h}@{h}@{h}@{h}@{h}@{h}@{h}@{h}@{h}@{h}@{h}