diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm
index 6e5c6aa..f05e035 100644
--- a/gnu/build/file-systems.scm
+++ b/gnu/build/file-systems.scm
@@ -294,15 +294,11 @@ partition field reader that returned a value."
 
 (define %partition-label-readers
   (list (partition-field-reader read-ext2-superblock
-                                ext2-superblock-volume-name)
-        (partition-field-reader read-btrfs-superblock
-                                btrfs-superblock-volume-name)))
+                                ext2-superblock-volume-name)))
 
 (define %partition-uuid-readers
   (list (partition-field-reader read-ext2-superblock
-                                ext2-superblock-uuid)
-        (partition-field-reader read-btrfs-superblock
-                                btrfs-superblock-uuid)))
+                                ext2-superblock-uuid)))
 
 (define read-partition-label
   (cut read-partition-field <> %partition-label-readers))