diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index d80a278..77fcb57 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -580,8 +580,15 @@
 			}
 			break;
 		case Opt_acl:
+#ifdef CONFIG_BTRFS_FS_POSIX_ACL
 			root->fs_info->sb->s_flags |= MS_POSIXACL;
 			break;
+#else
+			btrfs_err(root->fs_info,
+				"support for ACL not compiled in!");
+			ret = -EINVAL;
+			goto out;
+#endif
 		case Opt_noacl:
 			root->fs_info->sb->s_flags &= ~MS_POSIXACL;
 			break;