diff --git a/mptcp/files/etc/init.d/mptcp b/mptcp/files/etc/init.d/mptcp
index e6450acfd..067154ac0 100755
--- a/mptcp/files/etc/init.d/mptcp
+++ b/mptcp/files/etc/init.d/mptcp
@@ -365,7 +365,7 @@ start_service() {
 		}
 	fi
 	uci -q commit network
-	[ -n "$(ubus call system board | jsonfilter -e '@.board_name' | grep raspberry)" ] && [ -n "$(ubus call system board | jsonfilter -e '@.kernel' | grep '4.14')" ] && {
+	[ -n "$(ubus call system board | jsonfilter -e '@.board_name' | grep raspberry)" ] && [ -z "$(ubus call system board | jsonfilter -e '@.board_name' | grep '4-model-b')" ] && {
 		ethtool --offload eth0 rx off tx off
 	}
 }