diff --git a/build/sims/config.202 b/build/sims/config.202
index 1eb63300..b7f4aaa9 100644
--- a/build/sims/config.202
+++ b/build/sims/config.202
@@ -254,8 +254,8 @@ DEFOPT NSTTYS==8	;# STY'S (PSEUDO-TTY'S)
 DEFOPT TSYSM==512.	;TOTAL PDP10 1K MEM BLOCKS
 DEFOPT NMMP==4		;# EXEC PAGES FOR MMP TABLE (# VIR PGS/512.)
 
-DEFSYM PMRCM==777	;9 BIT REAL CORE ADR
-DEFSYM PMAGEM==17000	;4 BIT AGE
+DEFSYM PMRCM==1777	;10 BIT REAL CORE ADR
+DEFSYM PMAGEM==16000	;3 BIT AGE
 DEFSYM PMCSHM==0	;NO CACHE BIT
 DEFSYM PMUNSD==160000	;UNUSED BITS