diff --git a/scripts/Makefile.toolchain.gccarmemb b/scripts/Makefile.toolchain.gccarmemb
index 028a04b9131..4e7db43f1fa 100644
--- a/scripts/Makefile.toolchain.gccarmemb
+++ b/scripts/Makefile.toolchain.gccarmemb
@@ -10,4 +10,6 @@ LIBGCC_DIR = $(shell dirname `$(CROSS_COMPILE)gcc ${KBUILD_CFLAGS} -print-libgcc
 LIB_INCLUDE_DIR += -L ${LIBGCC_DIR}
 TOOLCHAIN_CFLAGS = -I${GCCARMEMB_TOOLCHAIN_PATH}/arm-none-eabi/include
 
-export CROSS_COMPILE TOOLCHAIN_LIBS TOOLCHAIN_CFLAGS LIB_INCLUDE_DIR
+DTC ?= /usr/bin/dtc
+
+export CROSS_COMPILE TOOLCHAIN_LIBS TOOLCHAIN_CFLAGS LIB_INCLUDE_DIR DTC