diff --git a/src/win/udp.c b/src/win/udp.c
index 14f937ac..8a36396b 100644
--- a/src/win/udp.c
+++ b/src/win/udp.c
@@ -582,7 +582,7 @@ void uv_process_udp_send_req(uv_loop_t* loop, uv_udp_t* handle,
 int uv_udp_set_multicast_ttl(uv_udp_t* handle, int ttl) {
   if (setsockopt(handle->socket, IPPROTO_IP, IP_MULTICAST_TTL,
       (const char*)&ttl, sizeof ttl) == -1) {
-    uv__set_sys_error(handle->loop, errno);
+    uv__set_sys_error(handle->loop, WSAGetLastError());
     return -1;
   }
 
@@ -593,7 +593,7 @@ int uv_udp_set_multicast_ttl(uv_udp_t* handle, int ttl) {
 int uv_udp_set_broadcast(uv_udp_t* handle, int on) {
   if (setsockopt(handle->socket, SOL_SOCKET, SO_BROADCAST, (const char*)&on,
       sizeof on) == -1) {
-    uv__set_sys_error(handle->loop, errno);
+    uv__set_sys_error(handle->loop, WSAGetLastError());
     return -1;
   }