diff --git a/sys/dev/igc/igc_txrx.c b/sys/dev/igc/igc_txrx.c
--- a/sys/dev/igc/igc_txrx.c
+++ b/sys/dev/igc/igc_txrx.c
@@ -593,6 +593,6 @@
 	case IGC_RXDADV_RSSTYPE_IPV6_TCP_EX:
 		return M_HASHTYPE_RSS_TCP_IPV6_EX;
 	default:
-		return M_HASHTYPE_OPAQUE;
+		return M_HASHTYPE_NONE;
 	}
 }