diff --git a/sys/dev/dc/if_dc.c b/sys/dev/dc/if_dc.c
index 7dbb53974fab..965130a44dfc 100644
--- a/sys/dev/dc/if_dc.c
+++ b/sys/dev/dc/if_dc.c
@@ -1126,9 +1126,9 @@ dc_setfilt_21143(struct dc_softc *sc)
 	}
 
 	/* Set our MAC address */
-	sp[39] = DC_SP_MAC(((u_int16_t *)IF_LLADDR(sc->dc_ifp))[0]);
-	sp[40] = DC_SP_MAC(((u_int16_t *)IF_LLADDR(sc->dc_ifp))[1]);
-	sp[41] = DC_SP_MAC(((u_int16_t *)IF_LLADDR(sc->dc_ifp))[2]);
+	sp[39] = DC_SP_MAC((u_int16_t *)IF_LLADDR(sc->dc_ifp) + 0);
+	sp[40] = DC_SP_MAC((u_int16_t *)IF_LLADDR(sc->dc_ifp) + 1);
+	sp[41] = DC_SP_MAC((u_int16_t *)IF_LLADDR(sc->dc_ifp) + 2);
 
 	sframe->dc_status = htole32(DC_TXSTAT_OWN);
 	CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF);
@@ -1324,9 +1324,9 @@ dc_setfilt_xircom(struct dc_softc *sc)
 	}
 
 	/* Set our MAC address */
-	sp[0] = DC_SP_MAC(((u_int16_t *)IF_LLADDR(sc->dc_ifp))[0]);
-	sp[1] = DC_SP_MAC(((u_int16_t *)IF_LLADDR(sc->dc_ifp))[1]);
-	sp[2] = DC_SP_MAC(((u_int16_t *)IF_LLADDR(sc->dc_ifp))[2]);
+	sp[0] = DC_SP_MAC((u_int16_t *)IF_LLADDR(sc->dc_ifp) + 0);
+	sp[1] = DC_SP_MAC((u_int16_t *)IF_LLADDR(sc->dc_ifp) + 1);
+	sp[2] = DC_SP_MAC((u_int16_t *)IF_LLADDR(sc->dc_ifp) + 2);
 
 	DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON);
 	DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ON);
diff --git a/sys/dev/dc/if_dcreg.h b/sys/dev/dc/if_dcreg.h
index ecf9962fcf55..e5195f5f0d90 100644
--- a/sys/dev/dc/if_dcreg.h
+++ b/sys/dev/dc/if_dcreg.h
@@ -473,9 +473,9 @@ struct dc_desc {
     (uintptr_t)(sc->dc_ldata->dc_tx_list + i) - (uintptr_t)sc->dc_ldata)
 
 #if BYTE_ORDER == BIG_ENDIAN
-#define DC_SP_MAC(x)		((x) << 16)
+#define DC_SP_MAC(ptr)		(be16dec(ptr) << 16)
 #else
-#define DC_SP_MAC(x)		(x)
+#define DC_SP_MAC(ptr)		(le16dec(ptr))
 #endif
 
 struct dc_list_data {