diff --git a/build/sims/config.202 b/build/sims/config.202
index 0434a068..b2afc384 100644
--- a/build/sims/config.202
+++ b/build/sims/config.202
@@ -227,7 +227,7 @@ DEFOPT NLPTP==1		;HAS NEW LPT (ODEC)
 DEFOPT TPLP==1		;PSEUDO LPT
 DEFOPT PTRP==1		;HAS PAPER TAPE
 DEFOPT PTPP==1		; And punch works.
-DEFOPT PDCLKP==0	;"DeCoriolis" CLOCK
+DEFOPT PDCLKP==1	;"DeCoriolis" CLOCK
 DEFOPT 340P==1		;HAS 340 DISPLAY
 
 DEFOPT NETP==0		; Has net connection
diff --git a/build/sims/run b/build/sims/run
index 5dbac46d..54115397 100644
--- a/build/sims/run
+++ b/build/sims/run
@@ -3,7 +3,8 @@ set cpu its
 set cpu 1024k
 set cpu idle
 set cpu mpx
-set pd off
+set pd enabled
+set pd on
 set dpy enabled
 set tk enabled
 at tk 10000