diff --git a/sys/dev/xen/netfront/netfront.c b/sys/dev/xen/netfront/netfront.c
index 663fac6..dd7305e 100644
--- a/sys/dev/xen/netfront/netfront.c
+++ b/sys/dev/xen/netfront/netfront.c
@@ -81,7 +81,7 @@ __FBSDID("$FreeBSD$");
 
 #include "xenbus_if.h"
 
-#define XN_CSUM_FEATURES	(CSUM_TCP | CSUM_UDP | CSUM_TSO)
+#define XN_CSUM_FEATURES	(CSUM_TCP | CSUM_UDP)
 
 #define GRANT_INVALID_REF	0
 
@@ -1960,7 +1960,6 @@ create_netdev(device_t dev)
     	ifp->if_hwassist = XN_CSUM_FEATURES;
     	ifp->if_capabilities = IFCAP_HWCSUM;
 #if __FreeBSD_version >= 700000
-	ifp->if_capabilities |= IFCAP_TSO4;
 	if (xn_enable_lro) {
 		int err = tcp_lro_init(&np->xn_lro);
 		if (err) {