diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 8fdc0520e298..b535285642dc 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -75,7 +75,9 @@ static int can_modify_feature(struct btrfs_feature_attr *fa)
 		clear = BTRFS_FEATURE_INCOMPAT_SAFE_CLEAR;
 		break;
 	default:
-		BUG();
+		printk(KERN_WARNING "btrfs: sysfs: unknown feature set %d\n",
+				fa->feature_set);
+		return 0;
 	}
 
 	if (set & fa->feature_bit)