diff --git a/readline/ChangeLog b/readline/ChangeLog
index 681b20643f..e92f1cd4a0 100644
--- a/readline/ChangeLog
+++ b/readline/ChangeLog
@@ -1,3 +1,8 @@
+Sun Aug 11 14:59:09 1996  Fred Fish  <fnf@cygnus.com>
+
+	* rldefs.h:  If __osf__is defined, include <termio.h> instead of
+	<sgtty.h>.
+
 Fri Aug  9 08:54:26 1996  Stu Grossman  (grossman@critters.cygnus.com)
 
 	* bind.c complete.c history.c readline.c:  Don't include sys/file.h.
diff --git a/readline/rldefs.h b/readline/rldefs.h
index d6b9b06507..3b7a623090 100644
--- a/readline/rldefs.h
+++ b/readline/rldefs.h
@@ -65,15 +65,16 @@
 
 /* System V machines use termio. */
 #if !defined (_POSIX_VERSION)
-/* CYGNUS LOCAL accept __hpux as well as hpux for HP compiler in ANSI mode.  */
-#  if defined (USG) || defined (hpux) || defined (__hpux) || defined (Xenix) || defined (sgi) || defined (DGUX)
+/* CYGNUS LOCAL accept __hpux as well as hpux for HP compiler in ANSI mode.
+   Add __osf__ to list of machines to force use of termio.h */
+#  if defined (USG) || defined (hpux) || defined (__hpux) || defined (Xenix) || defined (sgi) || defined (DGUX) || defined (__osf__)
 #    undef NEW_TTY_DRIVER
 #    define TERMIO_TTY_DRIVER
 #    include <termio.h>
 #    if !defined (TCOON)
 #      define TCOON 1
 #    endif
-#  endif /* USG || hpux || Xenix || sgi || DUGX */
+#  endif /* USG || hpux || Xenix || sgi || DUGX || __osf__ */
 #endif /* !_POSIX_VERSION */
 
 /* Posix systems use termios and the Posix signal functions. */