diff --git a/src/xcb_util.c b/src/xcb_util.c
index 0296ce0dd..cce54aa50 100644
--- a/src/xcb_util.c
+++ b/src/xcb_util.c
@@ -389,7 +389,11 @@ static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short
         fd = _xcb_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
         if (_xcb_do_connect(fd, addr->ai_addr, addr->ai_addrlen) >= 0)
             break;
+#ifdef _WIN32
+        closesocket(fd);
+#else
         close(fd);
+#endif
         fd = -1;
     }
     freeaddrinfo(results);
@@ -454,7 +458,11 @@ static int _xcb_open_unix(char *protocol, const char *file)
         setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof(int));
     }
     if(connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
+#ifdef _WIN32
+        closesocket(fd);
+#else
         close(fd);
+#endif
         return -1;
     }
     return fd;
@@ -481,7 +489,11 @@ static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen)
     if (fd == -1)
         return -1;
     if (connect(fd, (struct sockaddr *) &addr, namelen) == -1) {
+#ifdef _WIN32
+        closesocket(fd);
+#else
         close(fd);
+#endif
         return -1;
     }
     return fd;