diff --git a/lustre/llite/super25.c b/lustre/llite/super25.c
index cc9f533753cf0aac48a7a1b921ca506033670db8..1f5425ec2f3f451eab541a79ca3bd565626ba4bc 100644
--- a/lustre/llite/super25.c
+++ b/lustre/llite/super25.c
@@ -114,6 +114,7 @@ struct file_system_type lustre_lite_fs_type = {
         .name         = "lustre_lite",
         .get_sb       = ll_get_sb,
         .kill_sb      = kill_anon_super,
+        .fs_flags     = FS_BINARY_MOUNTDATA,
 };
 
 struct file_system_type lustre_fs_type = {
@@ -121,6 +122,7 @@ struct file_system_type lustre_fs_type = {
         .name         = "lustre",
         .get_sb       = lustre_get_sb,
         .kill_sb      = kill_anon_super,
+        .fs_flags     = FS_BINARY_MOUNTDATA,
 };
 
 static int __init init_lustre_lite(void)