diff --git a/releng/releng_isojigdo b/releng/releng_isojigdo
index c80ca07b..8e6ea431 100755
--- a/releng/releng_isojigdo
+++ b/releng/releng_isojigdo
@@ -285,9 +285,15 @@ esac
 # sort out the cruft
 cleanup
 
+# warn about downloaded image left behind
+if [ -f "${TMP_DATA_DIR}"/"${REMOTE_IMG}" ]; then
+ printf "${SELF}: Leaving "
+ ls -sh "${TMP_DATA_DIR}"/"${REMOTE_IMG}"
+fi
+
 # last hints
 printf "\n${SELF}: HINT: manual checks remained to be done:\n"
-printf " * ${GEN_DATA_DIR}/${RELENG_IMG}.img boots from USB stick and/or optical media.\n"
+printf " * ${GEN_DATA_DIR}/${RELENG_IMG}.iso boots from USB stick and/or optical media.\n"
 printf " * appended FAT partition is mountable.\n"
 printf " * xorriso -indev ${GEN_DATA_DIR}/${RELENG_IMG}.iso -pvd_info\n"
 printf " * fdisk -lu ${GEN_DATA_DIR}/${RELENG_IMG}.iso\n"