diff --git a/6502/C64/src/vf-finalize.fth b/6502/C64/src/vf-finalize.fth
index 0b37fa3..e9c659e 100644
--- a/6502/C64/src/vf-finalize.fth
+++ b/6502/C64/src/vf-finalize.fth
@@ -13,6 +13,7 @@ Forth also definitions
 
 (C16 : (64 ) \ jumps belhind C)
 (C64 : (16 )
+(X16 : (CX )
  BEGIN name count dup 0=
  abort" C) missing"  2 = >r
  @ [ Ascii C Ascii ) $100 * + ] Literal
@@ -20,7 +21,7 @@ Forth also definitions
 
 : C)  ; immediate
 
-(C16 : (16 ) (C64 : (64 ) ; immediate
+(C16 : (16 ) (C64 : (64 ) (X16 : (CX ) ; immediate
 
 : forth-83 ;  \ last word in Dictionary