diff --git a/src/unix/udp.c b/src/unix/udp.c
index 15fa5937..68e2e4a8 100644
--- a/src/unix/udp.c
+++ b/src/unix/udp.c
@@ -268,16 +268,30 @@ static void uv__udp_sendmsg(uv_udp_t* handle) {
  * are different from the BSDs: it _shares_ the port rather than steal it
  * from the current listener.  While useful, it's not something we can emulate
  * on other platforms so we don't enable it.
+ *
+ * zOS does not support getsockname with SO_REUSEPORT option when using
+ * AF_UNIX.
  */
 static int uv__set_reuse(int fd) {
   int yes;
-
-#if defined(SO_REUSEPORT) && !defined(__linux__)
   yes = 1;
+
+#if defined(SO_REUSEPORT) && defined(__MVS__)
+  struct sockaddr_in sockfd;
+  unsigned int sockfd_len = sizeof(sockfd);
+  if (getsockname(fd, (struct sockaddr*) &sockfd, &sockfd_len) == -1)
+      return UV__ERR(errno);
+  if (sockfd.sin_family == AF_UNIX) {
+    if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)))
+      return UV__ERR(errno);
+  } else {
+    if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &yes, sizeof(yes)))
+       return UV__ERR(errno);
+  }
+#elif defined(SO_REUSEPORT) && !defined(__linux__)
   if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &yes, sizeof(yes)))
     return UV__ERR(errno);
 #else
-  yes = 1;
   if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)))
     return UV__ERR(errno);
 #endif