diff --git a/board/qemu/arm-vexpress-tz/readme.txt b/board/qemu/arm-vexpress-tz/readme.txt
index b235ba5cd7..abce750291 100644
--- a/board/qemu/arm-vexpress-tz/readme.txt
+++ b/board/qemu/arm-vexpress-tz/readme.txt
@@ -18,7 +18,7 @@ secure and non-secure worlds.
 	-serial stdio \
 	-netdev user,id=vmnic -device virtio-net-device,netdev=vmnic \
 	-semihosting-config enable,target=native \
-	-bios bl1.bin
+	-bios bl1.bin # qemu_arm_vexpress_tz_defconfig
 
 The boot stage traces (if any) followed by the login prompt will appear
 in the terminal that started QEMU.
diff --git a/board/qemu/post-image.sh b/board/qemu/post-image.sh
index 404f77411c..88f0413496 100755
--- a/board/qemu/post-image.sh
+++ b/board/qemu/post-image.sh
@@ -27,6 +27,9 @@ QEMU_CMD_LINE="${QEMU_CMD_LINE//output\/images\//}"
 DEFAULT_ARGS="$(sed -r -e '/-serial stdio/!d; s/.*(-serial stdio).*/\1/' <<<"${QEMU_CMD_LINE}")"
 QEMU_CMD_LINE="${QEMU_CMD_LINE//-serial stdio/}"
 
+# Remove any string before qemu-system-*
+QEMU_CMD_LINE="$(sed -r -e 's/^.*(qemu-system-)/\1/' <<<"${QEMU_CMD_LINE}")"
+
 # Disable graphical output and redirect serial I/Os to console
 case ${DEFCONFIG_NAME} in
   (qemu_sh4eb_r2d_defconfig|qemu_sh4_r2d_defconfig)
diff --git a/configs/qemu_arm_vexpress_tz_defconfig b/configs/qemu_arm_vexpress_tz_defconfig
index 5aeb6b4290..7f5a06f0ab 100644
--- a/configs/qemu_arm_vexpress_tz_defconfig
+++ b/configs/qemu_arm_vexpress_tz_defconfig
@@ -43,6 +43,10 @@ BR2_PACKAGE_OPTEE_BENCHMARK=y
 BR2_PACKAGE_OPTEE_EXAMPLES=y
 BR2_PACKAGE_OPTEE_TEST=y
 
+# Image
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/qemu/post-image.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG)"
+
 # U-boot for booting the dear Linux kernel
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y