diff --git a/src/tools/cross-scripts/cross-sparc-sparc.lisp b/src/tools/cross-scripts/cross-sparc-sparc.lisp
index 20c4c67a366c65c57bd611ae937e35f2728c769c..074674787ad2e8a987a2e22f66cc9a4c8bdcbf06 100644
--- a/src/tools/cross-scripts/cross-sparc-sparc.lisp
+++ b/src/tools/cross-scripts/cross-sparc-sparc.lisp
@@ -145,6 +145,7 @@
 			       syms))))
   (frob OLD-VM:BYTE-BITS OLD-VM:WORD-BITS
 	OLD-VM:CHAR-BITS
+	OLD-VM:CHAR-BYTES
 	OLD-VM:LOWTAG-BITS
 	#+long-float OLD-VM:SIMPLE-ARRAY-LONG-FLOAT-TYPE 
 	OLD-VM:SIMPLE-ARRAY-DOUBLE-FLOAT-TYPE