diff --git a/board/stmicroelectronics/stm32mp1/genimage-demo.cfg b/board/stmicroelectronics/stm32mp1/genimage-demo.cfg
index faa8f93..467a628 100644
--- a/board/stmicroelectronics/stm32mp1/genimage-demo.cfg
+++ b/board/stmicroelectronics/stm32mp1/genimage-demo.cfg
@@ -33,6 +33,7 @@ image sdcard.img {
 
 	partition rootfs-a {
 		image = "rootfs.squashfs"
+		bootable = "yes"
 		size = 200M
 	}