diff --git a/lib/chibi/char-set/ascii.sld b/lib/chibi/char-set/ascii.sld
index 11c00035..cd2e5433 100644
--- a/lib/chibi/char-set/ascii.sld
+++ b/lib/chibi/char-set/ascii.sld
@@ -1,11 +1,9 @@
 
 (define-library (chibi char-set ascii)
-  (import (chibi) (chibi iset base))
-  (export char-set-contains?
-          char-set:lower-case  char-set:upper-case  char-set:title-case
+  (import (chibi) (chibi iset base) (chibi char-set base))
+  (export char-set:lower-case  char-set:upper-case  char-set:title-case
           char-set:letter      char-set:digit       char-set:letter+digit
           char-set:graphic     char-set:printing    char-set:whitespace
           char-set:iso-control char-set:punctuation char-set:symbol
-          char-set:hex-digit   char-set:blank       char-set:ascii
-          char-set:empty       char-set:full)
+          char-set:hex-digit   char-set:blank)
   (include "ascii.scm"))