diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 8de8ca8649..60d3272230 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -39,6 +39,7 @@
 #include "hw/timer/i8254.h"
 #include "hw/rtc/mc146818rtc.h"
 #include "hw/char/serial.h"
+#include "hw/display/ramfb.h"
 #include "hw/i386/topology.h"
 #include "hw/i386/e820_memory_layout.h"
 #include "hw/i386/fw_cfg.h"
@@ -604,6 +605,8 @@ static void microvm_class_init(ObjectClass *oc, void *data)
     object_class_property_set_description(oc,
         MICROVM_MACHINE_AUTO_KERNEL_CMDLINE,
         "Set off to disable adding virtio-mmio devices to the kernel cmdline");
+
+    machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE);
 }
 
 static const TypeInfo microvm_machine_info = {