diff --git a/doc/latex/httpd.tex b/doc/latex/httpd.tex
index d3ea3d0..b5327f8 100644
--- a/doc/latex/httpd.tex
+++ b/doc/latex/httpd.tex
@@ -204,17 +204,17 @@ constructing responses lives in the \ex{httpd-responses} structure.
   \var{Location} must be URI-encoded and begin with a slash.
 \end{desc}
 
-\defun{make-error-response}{status-code request [message] extras \ldots}{response}
+\defun{make-error-response}{status-code request extra \ldots}{response}
 \begin{desc}
   This is a helper procedure for constructing error responses.
-  \var{code} is status code of the response (see below). \var{Request}
-  is the request that led to the error.  \var{Message} is an optional
-  string containing an error message written in HTML, and \var{extras}
-  are further optional arguments containing further message lines to
+  \ex{Make-error-response} returns a response value the body of which
+  is a web page explaining the error at hand.
+  \var{status-code} is the status code of the response (see below).
+  \var{request}
+  is the request that led to the error.  \var{extra} are the further
+  arguments required for this specific \var{status-code} and
+  optionally further information-bits (preferably strings in HTML) to
   be added to the web page that's generated.
-
-  \ex{Make-error-response} constructs a response value which generates
-  a web page containg a short explanatory message for the error at hand.
 \end{desc}
 
 \begin{table}[htb]