diff --git a/tools/Makefile b/tools/Makefile
index cb1683e..62a7921 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -175,6 +175,8 @@
 endif
 endif
 
+HOSTCFLAGS_fit_image.o += -DMKIMAGE_DTC=\"$(DTC)\"
+
 HOSTLOADLIBES_dumpimage := $(HOSTLOADLIBES_mkimage)
 HOSTLOADLIBES_fit_info := $(HOSTLOADLIBES_mkimage)
 HOSTLOADLIBES_fit_check_sign := $(HOSTLOADLIBES_mkimage)
diff --git a/tools/mkimage.h b/tools/mkimage.h
index 3f369b7..baee866 100644
--- a/tools/mkimage.h
+++ b/tools/mkimage.h
@@ -44,6 +44,5 @@
 #define MKIMAGE_MAX_TMPFILE_LEN		256
 #define MKIMAGE_DEFAULT_DTC_OPTIONS	"-I dts -O dtb -p 500"
 #define MKIMAGE_MAX_DTC_CMDLINE_LEN	512
-#define MKIMAGE_DTC			"dtc"   /* assume dtc is in $PATH */
 
 #endif /* _MKIIMAGE_H_ */