diff --git a/hdata/test/dtdiff_wrap.sh b/hdata/test/dtdiff_wrap.sh
index e746e259a7f9..a2c58faef87a 100755
--- a/hdata/test/dtdiff_wrap.sh
+++ b/hdata/test/dtdiff_wrap.sh
@@ -12,5 +12,5 @@ cp /dev/stdin $T.dtb
 dtc -I dts -O dtb $1 > $T.orig.dtb
 dtdiff $T.orig.dtb $T.dtb
 R=$?
-if [ $R == 0 ]; then rm -f $T.dtb; fi
+if [ $R == 0 ]; then rm -f $T $T.orig.dtb $T.dtb; fi
 exit $R