diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index da541dfca2e335c2419242b44d7a3fbaa9ccc300..1efa56e18f9b905ceac4dbcb3faa0221ab331ce2 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -689,12 +689,8 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
 	transid = btrfs_super_generation(disk_super);
 	if (disk_super->label[0])
 		printk(KERN_INFO "device label %s ", disk_super->label);
-	else {
-		/* FIXME, make a readl uuid parser */
-		printk(KERN_INFO "device fsid %llx-%llx ",
-		       *(unsigned long long *)disk_super->fsid,
-		       *(unsigned long long *)(disk_super->fsid + 8));
-	}
+	else
+		printk(KERN_INFO "device fsid %pU ", disk_super->fsid);
 	printk(KERN_CONT "devid %llu transid %llu %s\n",
 	       (unsigned long long)devid, (unsigned long long)transid, path);
 	ret = device_list_add(path, disk_super, devid, fs_devices_ret);