1 files changed, 0 insertions, 1 deletions
diff --git a/io.c b/io.c
index bc661ce6d2..e97704db11 100644
--- a/io.c
+++ b/io.c
@@ -5260,7 +5260,6 @@ pipe_open(struct rb_exec_arg *eargp, VALUE prog, const char *modestr, int fmode,
 	pid = rb_fork_err(&status, popen_exec, &arg, arg.execp->redirect_fds, errmsg, sizeof(errmsg));
     }
     else {
-	fflush(stdin);		/* is it really needed? */
 	pid = rb_fork(&status, 0, 0, Qnil);
 	if (pid == 0) {		/* child */
 	    rb_thread_atfork();