diff --git a/bash/fs.sh b/bash/fs.sh
index bf59782..9c1d122 100644
--- a/bash/fs.sh
+++ b/bash/fs.sh
@@ -97,7 +97,7 @@ luks_format() {
 			set -- "${@}" --label "${label}"
 		fi
 		if [ -n "${uuid}" ]; then
-			set -- "${@}" --label "${uuid}"
+			set -- "${@}" --uuid "${uuid}"
 		fi
 		echo "${passphrase}" |
 			cryptsetup "${@}" luksFormat "${device}"