diff --git a/dts/Makefile b/dts/Makefile
index 94967cf656..cb31113829 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -33,7 +33,7 @@ targets += dt.dtb
 $(DTB): arch-dtbs
 	$(Q)test -e $@ || (						\
 	echo >&2;							\
-	echo >&2 "Device Tree Source is not correctly specified.";	\
+	echo >&2 "Device Tree Source ($@) is not correctly specified.";	\
 	echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'";		\
 	echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument";	\
 	echo >&2;							\