1 files changed, 1 insertions, 1 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 7d1679b8561..434d019c6e0 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -3347,7 +3347,7 @@ read_avail_input (expected)
 #else
           nread = read (fileno (stdin), cbuf, n_to_read);
 #endif
-#if defined (AIX) && defined (_BSD)
+#if defined (AIX) && (! defined (aix386) && defined (_BSD))
           /* The kernel sometimes fails to deliver SIGHUP for ptys.
              This looks incorrect, but it isn't, because _BSD causes
              O_NDELAY to be defined in fcntl.h as O_NONBLOCK,