1 files changed, 3 insertions, 0 deletions

diff --git a/channels.c b/channels.c
index 9e87bfb9e..281df3802 100644
--- a/channels.c
+++ b/channels.c
@@ -248,7 +248,10 @@ channel_register_fds(Channel *c, int rfd, int wfd, int efd,
 
         if ((c->isatty = is_tty) != 0)
                 debug2("channel %d: rfd %d isatty", c->self, c->rfd);
+#ifdef _AIX
+        /* XXX: Later AIX versions can't push as much data to tty */
         c->wfd_isatty = is_tty || isatty(c->wfd);
+#endif
 
         /* enable nonblocking mode */
         if (nonblock) {