diff --git a/winsup/cygwin/include/sys/socket.h b/winsup/cygwin/include/sys/socket.h
index e6b92eef8..4b61cb0ef 100644
--- a/winsup/cygwin/include/sys/socket.h
+++ b/winsup/cygwin/include/sys/socket.h
@@ -40,7 +40,7 @@ extern "C"
   int shutdown (int, int);
   int socket (int __family, int __type, int __protocol);
   int sockatmark (int __fd);
-  int socketpair (int __domain, int __type, int __protocol, int *__socket_vec);
+  int socketpair (int __domain, int __type, int __protocol, int __fds[2]);
 
   struct servent *getservbyname (const char *__name, const char *__proto);
 #endif
diff --git a/winsup/cygwin/net.cc b/winsup/cygwin/net.cc
index 38a53f815..67cd96755 100644
--- a/winsup/cygwin/net.cc
+++ b/winsup/cygwin/net.cc
@@ -2271,7 +2271,7 @@ cygwin_bindresvport (int fd, struct sockaddr_in *sin)
 
 /* socketpair: POSIX.1-2001, POSIX.1-2008, 4.4BSD. */
 extern "C" int
-socketpair (int af, int type, int protocol, int *sb)
+socketpair (int af, int type, int protocol, int sv[2])
 {
   int res = -1;
   const device *dev;
@@ -2324,8 +2324,8 @@ socketpair (int af, int type, int protocol, int *sb)
 	    set_std_handle (fd_out);
 	  __try
 	    {
-	      sb[0] = fd_in;
-	      sb[1] = fd_out;
+	      sv[0] = fd_in;
+	      sv[1] = fd_out;
 	      res = 0;
 	    }
 	  __except (EFAULT) {}