diff --git a/build/pdp10-ka/imlac b/build/pdp10-ka/imlac
index 41e4242d..f0ce9047 100644
--- a/build/pdp10-ka/imlac
+++ b/build/pdp10-ka/imlac
@@ -1,3 +1,2 @@
-set bootstrap stty
 attach tty telnet localhost d10016
-go
+boot stty
diff --git a/tools/simlac b/tools/simlac
index fcf0c96b..37c54370 160000
--- a/tools/simlac
+++ b/tools/simlac
@@ -1 +1 @@
-Subproject commit fcf0c96b6c1285b25f27f7274d42b78a4cbeba8e
+Subproject commit 37c54370594dede213e1796d035239faca74c1b2