diff --git a/doc/lispref/nonascii.texi b/doc/lispref/nonascii.texi
index ab15ea7d9b2..66d12033d82 100644
--- a/doc/lispref/nonascii.texi
+++ b/doc/lispref/nonascii.texi
@@ -287,12 +287,11 @@ unibyte string, it is returned unchanged.  Use this function for
 characters.
 @end defun
 
-@c FIXME: Should '@var{character}' be '@var{byte}'?
 @defun byte-to-string byte
 @cindex byte to string
 This function returns a unibyte string containing a single byte of
-character data, @var{character}.  It signals an error if
-@var{character} is not an integer between 0 and 255.
+character data, @var{byte}.  It signals an error if @var{byte} is not
+an integer between 0 and 255.
 @end defun
 
 @defun multibyte-char-to-unibyte char