diff --git a/socket/socket_bind4_reuse.c b/socket/socket_bind4_reuse.c
index 7e1b8c1..1fb39f2 100644
--- a/socket/socket_bind4_reuse.c
+++ b/socket/socket_bind4_reuse.c
@@ -8,5 +8,8 @@
 int socket_bind4_reuse(int s,const char *ip,uint16 port) {
   int one=1;
   setsockopt(s,SOL_SOCKET,SO_REUSEADDR,&one,sizeof one);
+#ifdef SO_REUSEPORT
+  setsockopt(s,SOL_SOCKET,SO_REUSEPORT,&one,sizeof one);
+#endif
   return winsock2errno(socket_bind4(s,ip,port));
 }
diff --git a/socket/socket_bind6_reuse.c b/socket/socket_bind6_reuse.c
index 439c798..6d23941 100644
--- a/socket/socket_bind6_reuse.c
+++ b/socket/socket_bind6_reuse.c
@@ -8,5 +8,8 @@
 int socket_bind6_reuse(int s,const char *ip,uint16 port,uint32 scope_id) {
   int one=1;
   setsockopt(s,SOL_SOCKET,SO_REUSEADDR,&one,sizeof one);
+#ifdef SO_REUSEPORT
+  setsockopt(s,SOL_SOCKET,SO_REUSEPORT,&one,sizeof one);
+#endif
   return winsock2errno(socket_bind6(s,ip,port,scope_id));
 }