diff --git a/README b/README
index b245564f54..e54c5d6efb 100644
--- a/README
+++ b/README
@@ -82,7 +82,7 @@ REQUIREMENTS:
           CONFIG_IPV6
           CONFIG_AUTOFS4_FS
           CONFIG_TMPFS_XATTR
-          CONFIG_{TMPFS,EXT4,XFS,BTRFS_FS,...}_POSIX_ACL
+          CONFIG_{TMPFS,EXT4_FS,XFS,BTRFS_FS,...}_POSIX_ACL
           CONFIG_SECCOMP
           CONFIG_SECCOMP_FILTER (required for seccomp support)
           CONFIG_CHECKPOINT_RESTORE (for the kcmp() syscall)