diff --git a/conf/machine/raspberrypi-cm3.conf b/conf/machine/raspberrypi-cm3.conf
index 638c2ea..f1b8151 100644
--- a/conf/machine/raspberrypi-cm3.conf
+++ b/conf/machine/raspberrypi-cm3.conf
@@ -6,7 +6,6 @@ DEFAULTTUNE ?= "cortexa7thf-neon-vfpv4"
 require conf/machine/include/tune-cortexa7.inc
 include conf/machine/include/rpi-base.inc
 
-KBUILD_DEFCONFIG ?= "bcm2709_defconfig"
 SDIMG_KERNELIMAGE ?= "kernel7.img"
 UBOOT_MACHINE = "rpi_3_32b_config"
 SERIAL_CONSOLES ?= "115200;ttyAMA0"