diff --git a/r6rs-doc/r6rs/scribblings/r6rs-lib-std/r6rs-lib-Z-H-12.html b/r6rs-doc/r6rs/scribblings/r6rs-lib-std/r6rs-lib-Z-H-12.html
index 43905bc..2cf267b 100644
--- a/r6rs-doc/r6rs/scribblings/r6rs-lib-std/r6rs-lib-Z-H-12.html
+++ b/r6rs-doc/r6rs/scribblings/r6rs-lib-std/r6rs-lib-Z-H-12.html
@@ -298,7 +298,7 @@ <h2 class=section><a href="r6rs-lib-Z-H-1.html#node_toc_node_sec_11.2">11.2&nbsp
 Otherwise it returns the result of the following computation:
 </p>
 
-<tt>(fxnot&nbsp;(fxbit-count&nbsp;(fxnot&nbsp;<i>ei</i>)))<p></tt>
+<tt>(fxnot&nbsp;(fxbit-count&nbsp;(fxnot&nbsp;<i>fx</i>)))<p></tt>
 </p>
 <p></p>
 <p>