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-rw-r--r--gnu/system/uuid.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/gnu/system/uuid.scm b/gnu/system/uuid.scm
index a95dc1b7d1..8f967387ad 100644
--- a/gnu/system/uuid.scm
+++ b/gnu/system/uuid.scm
@@ -209,7 +209,7 @@ ISO9660 UUID representation."
 
 (define (ntfs-uuid->string uuid)
   "Convert NTFS UUID, a 8-byte bytevector, to its string representation."
-  (format #f "~{~:@(~x~)~}" (reverse (bytevector->u8-list uuid))))
+  (format #f "~{~:@(~2,'0x~)~}" (reverse (bytevector->u8-list uuid))))
 
 (define %ntfs-uuid-rx
   (make-regexp "^([[:xdigit:]]{16})$"))