diff --git a/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk b/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk
index e69de29bb..897342479 100644
--- a/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk
+++ b/hw/bsp/raspberrypi4/boards/raspberrypi_cm4/board.mk
@@ -0,0 +1 @@
+CFLAGS += -DBCM_VERSION=2711