diff --git a/board/nm/common/nbhw_init.c b/board/nm/common/nbhw_init.c
old mode 100644
new mode 100755
index 670b0ec67a..e044622da6
--- a/board/nm/common/nbhw_init.c
+++ b/board/nm/common/nbhw_init.c
@@ -57,8 +57,8 @@ void set_mac_addresses(int interfaces) {
 		if(bd_get_mac(i, macaddress, 6) == 0)
 			set_mac(i, macaddress, 6);
 		else {
-			/* make local address */
-			macaddress[0] |= 2;
+			/* make temporary address */
+			macaddress[0] = 0;
 			macaddress[5] += 1;
 			set_mac(i, macaddress, 6);
 		}