diff --git a/hw/misc/mmio_interface.c b/hw/misc/mmio_interface.c
index da154e5c95..894e9801cb 100644
--- a/hw/misc/mmio_interface.c
+++ b/hw/misc/mmio_interface.c
@@ -111,6 +111,11 @@ static void mmio_interface_class_init(ObjectClass *oc, void *data)
     dc->realize = mmio_interface_realize;
     dc->unrealize = mmio_interface_unrealize;
     dc->props = mmio_interface_properties;
+    /* Reason: pointer property "host_ptr", and this device
+     * is an implementation detail of the memory subsystem,
+     * not intended to be created directly by the user.
+     */
+    dc->user_creatable = false;
 }
 
 static const TypeInfo mmio_interface_info = {