diff --git a/conf/machine/raspberrypi5.conf b/conf/machine/raspberrypi5.conf
index 21221fd..8c38637 100644
--- a/conf/machine/raspberrypi5.conf
+++ b/conf/machine/raspberrypi5.conf
@@ -21,3 +21,6 @@ SDIMG_KERNELIMAGE ?= "kernel_2712.img"
 SERIAL_CONSOLES ?= "115200;ttyAMA10"
 
 VC4DTBO ?= "vc4-kms-v3d"
+
+# "zImage" not supported on arm64 and ".gz" images not supported by bootloader yet
+KERNEL_IMAGETYPE_DIRECT ?= "Image"