diff --git a/src/mudsys/readch.215 b/src/mudsys/readch.215
index d6513ec4..615a6a8c 100644
--- a/src/mudsys/readch.215
+++ b/src/mudsys/readch.215
@@ -945,7 +945,7 @@ TTYOP2:	.SUSET	[.RTTY,,C]
 TTYOPEN:
 	SKIPE	NOTTY
 	POPJ	P,
-	DOTCAL	OPEN,[[1000,,TTYIN],[[SIXBIT /TTY   /]]]
+	DOTCAL	OPEN,[[1000,,TTYIN],[[SIXBIT /TTY   /]],[5000,,0]]
 	JRST	TTYNO
 	DOTCAL	OPEN,[[1000,,TTYOUT],[[SIXBIT /TTY   /]],[5000,,1]]
 	FATAL CANT OPEN TTY