diff --git a/unix.c b/unix.c
index 4694149..183d6ae 100644
--- a/unix.c
+++ b/unix.c
@@ -327,17 +327,17 @@ enet_socket_set_option (ENetSocket socket, ENetSocketOption option, int value)
 #else
 #ifdef IP_TOS
             // UNIX - IPv4
-            value = 0xE0; // DSCP: CS7
+            value = value ? 46 << 2 : 0; // DSCP: Expedited Forwarding
             result = setsockopt (socket, IPPROTO_IP, IP_TOS, (char *) & value, sizeof (int));
 #endif
 #ifdef IPV6_TCLASS
             // UNIX - IPv6
-            value = 0xE0; // DSCP: CS7
+            value = value ? 46 << 2: 0; // DSCP: Expedited Forwarding
             result = setsockopt (socket, IPPROTO_IPV6, IPV6_TCLASS, (char *) & value, sizeof (int));
 #endif
 #ifdef SO_PRIORITY
             // Linux
-            value = 6; // Max priority without NET_CAP_ADMIN
+            value = value ? 6 : 0; // Max priority without NET_CAP_ADMIN
             result = setsockopt (socket, SOL_SOCKET, SO_PRIORITY, (char *) & value, sizeof (int));
 #endif
 #endif /* SO_NET_SERVICE_TYPE */