diff --git a/rust/hw/char/pl011/src/device_class.rs b/rust/hw/char/pl011/src/device_class.rs
index 08c846aa48..9282dc4d15 100644
--- a/rust/hw/char/pl011/src/device_class.rs
+++ b/rust/hw/char/pl011/src/device_class.rs
@@ -29,7 +29,8 @@ qemu_api::declare_properties! {
         PL011State,
         migrate_clock,
         unsafe { &qdev_prop_bool },
-        bool
+        bool,
+        default = true
     ),
 }