diff --git a/build/pdp10-ka/imlac b/build/pdp10-ka/imlac
index f0ce9047..edb5aadf 100644
--- a/build/pdp10-ka/imlac
+++ b/build/pdp10-ka/imlac
@@ -1,2 +1,5 @@
-attach tty telnet localhost d10016
+enable mit mode true
+set cpu type PDS1
+set framerate throttle true
+attach tty raw localhost d10016
 boot stty