diff --git a/zfs.sh b/zfs.sh
index 0cb5f03..824bf2b 100755
--- a/zfs.sh
+++ b/zfs.sh
@@ -228,7 +228,7 @@ if [[ "${1}" == '--unmount' ]]; then
 
 	zpool \
 		export \
-		-a
+		${hostname,,}
 fi
 
 if [[ "${1}" == '--host-id' ]]; then