diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 636879ae1db7..d96b8b54e77e 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -449,7 +449,15 @@ static bool pcc_last_tx_done(struct mbox_chan *chan)
 {
 	struct pcc_chan_info *pchan = chan->con_priv;
 
-	return pcc_mbox_cmd_complete_check(pchan);
+	if (!(chan->txdone_method & MBOX_TXDONE_BY_POLL))
+		return false;
+
+	if (!pcc_mbox_cmd_complete_check(pchan))
+		return false;
+
+	mbox_chan_received_data(chan, NULL);
+
+	return true;
 }
 
 /**