diff --git a/build/pdp10-kl/run b/build/pdp10-kl/run
index 1c696ccd..37991497 100644
--- a/build/pdp10-kl/run
+++ b/build/pdp10-kl/run
@@ -1,7 +1,7 @@
 set console wru=034
 set cpu its
 set cpu idle
-set cpu 512k
+set cpu 2048k
 #set dpa dis
 #set dpb dis
 set rpb dis