diff --git a/build_library/disk_layout.json b/build_library/disk_layout.json
index 1022069f79..5db159b6f8 100644
--- a/build_library/disk_layout.json
+++ b/build_library/disk_layout.json
@@ -51,7 +51,8 @@
         "fs_label":"OEM",
         "type":"data",
         "blocks":"262144",
-        "fs_type":"ext4",
+        "fs_type":"btrfs",
+        "fs_compression":"zlib",
         "mount":"/usr/share/oem"
       },
       "7":{