diff --git a/src/unix/core.c b/src/unix/core.c
index f92446ff..0830c74a 100644
--- a/src/unix/core.c
+++ b/src/unix/core.c
@@ -636,27 +636,6 @@ int uv__cloexec_fcntl(int fd, int set) {
 }
 
 
-/* This function is not execve-safe, there is a race window
- * between the call to dup() and fcntl(FD_CLOEXEC).
- */
-int uv__dup(int fd) {
-  int err;
-
-  fd = dup(fd);
-
-  if (fd == -1)
-    return UV__ERR(errno);
-
-  err = uv__cloexec(fd, 1);
-  if (err) {
-    uv__close(fd);
-    return err;
-  }
-
-  return fd;
-}
-
-
 ssize_t uv__recvmsg(int fd, struct msghdr* msg, int flags) {
   struct cmsghdr* cmsg;
   ssize_t rc;
diff --git a/src/unix/internal.h b/src/unix/internal.h
index cd790371..72d8da8a 100644
--- a/src/unix/internal.h
+++ b/src/unix/internal.h
@@ -185,7 +185,6 @@ int uv__nonblock_fcntl(int fd, int set);
 int uv__close(int fd); /* preserves errno */
 int uv__close_nocheckstdio(int fd);
 int uv__socket(int domain, int type, int protocol);
-int uv__dup(int fd);
 ssize_t uv__recvmsg(int fd, struct msghdr *msg, int flags);
 void uv__make_close_pending(uv_handle_t* handle);
 int uv__getiovmax(void);