diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 30612497643c08caa8a3bf352b13f784f729f725..d192936b76cff50522c8564eb84a84204094a964 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -75,6 +75,10 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
 	int len;
 
 	skb_tx_timestamp(skb);
+
+	/* do not fool net_timestamp_check() with various clock bases */
+	skb->tstamp = 0;
+
 	skb_orphan(skb);
 
 	/* Before queueing this packet to netif_rx(),