diff --git a/sys/dev/sis/if_sis.c b/sys/dev/sis/if_sis.c
index 456c3d4fd2b..55bb7ca08e9 100644
--- a/sys/dev/sis/if_sis.c
+++ b/sys/dev/sis/if_sis.c
@@ -625,7 +625,7 @@ sis_miibus_statchg(device_t dev)
 		SIS_CLRBIT(sc, SIS_RX_CFG, SIS_RXCFG_RX_TXPKTS);
 	}
 
-	if (sc->sis_type == SIS_TYPE_83816) {
+	if (sc->sis_type == SIS_TYPE_83815 && sc->sis_srr >= NS_SRR_16A) {
 		/*
 		 * MPII03.D: Half Duplex Excessive Collisions.
 		 * Also page 49 in 83816 manual
@@ -1989,7 +1989,7 @@ sis_initl(struct sis_softc *sc)
 		return;
 	}
 
-	if (sc->sis_type == SIS_TYPE_83815 || sc->sis_type == SIS_TYPE_83816) {
+	if (sc->sis_type == SIS_TYPE_83815) {
 		if (sc->sis_manual_pad != 0)
 			sc->sis_flags |= SIS_FLAG_MANUAL_PAD;
 		else
diff --git a/sys/dev/sis/if_sisreg.h b/sys/dev/sis/if_sisreg.h
index b4008065e51..6256fde33f0 100644
--- a/sys/dev/sis/if_sisreg.h
+++ b/sys/dev/sis/if_sisreg.h
@@ -439,7 +439,6 @@ struct sis_type {
 #define SIS_TYPE_900	1
 #define SIS_TYPE_7016	2
 #define SIS_TYPE_83815	3
-#define SIS_TYPE_83816	4
 
 struct sis_txdesc {
 	struct mbuf		*tx_m;