1 files changed, 1 insertions, 1 deletions

diff --git a/src/sysdep.c b/src/sysdep.c
index 4e9631dbba1..ef56346a313 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -1866,7 +1866,7 @@ setup_pty (fd)
      Since the latter lossage is more benign, we may as well
      lose that way.  -- cph */
 #ifdef FIONBIO
-#if defined(SYSV_PTYS) || defined(UNIX98_PTYS)
+#if defined(UNIX98_PTYS)
   {
     int on = 1;
     ioctl (fd, FIONBIO, &on);