diff --git a/drivers/net/mmnif.c b/drivers/net/mmnif.c
index cf818bf0..f8b2afbf 100644
--- a/drivers/net/mmnif.c
+++ b/drivers/net/mmnif.c
@@ -849,7 +849,7 @@ drop_packet_fast:
 
 	mmnif->stats.tx_err++;
 
-	return ERR_IF;
+        return ERR_OK;
 }
 
 /* mmnif_link_layer(): wrapper function called by ip_output()