diff --git a/src/r8168_n.c b/src/r8168_n.c
index d197630..b47419d 100755
--- a/src/r8168_n.c
+++ b/src/r8168_n.c
@@ -4209,7 +4209,7 @@ static netdev_features_t rtl8168_fix_features(struct net_device *dev,
         spin_lock_irqsave(&tp->lock, flags);
         if (dev->mtu > ETH_DATA_LEN) {
                 features &= ~NETIF_F_ALL_TSO;
-                features &= ~NETIF_F_ALL_CSUM;
+                features &= ~NETIF_F_CSUM_MASK;
         }
         spin_unlock_irqrestore(&tp->lock, flags);