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-rw-r--r--btrfstune.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/btrfstune.c b/btrfstune.c
index 4e42c5ce..6f07f314 100644
--- a/btrfstune.c
+++ b/btrfstune.c
@@ -349,7 +349,7 @@ static int change_uuid(struct btrfs_fs_info *fs_info, const char *new_fsid_str)
fs_info->new_fsid = new_fsid;
fs_info->new_chunk_tree_uuid = new_chunk_id;
- uuid_parse((const char*)fs_info->fsid, old_fsid);
+ memcpy(old_fsid, (const char*)fs_info->fsid, BTRFS_UUID_SIZE);
uuid_unparse(old_fsid, uuid_buf);
printf("Current fsid: %s\n", uuid_buf);