fixed typo, "header" ==> "headers"
diff --git a/Doc/libhttplib.tex b/Doc/libhttplib.tex
index ce5b2e3..70bcb3c 100644
--- a/Doc/libhttplib.tex
+++ b/Doc/libhttplib.tex
@@ -94,7 +94,7 @@
\var{message}, \var{headers}). Here \var{replycode} is the integer
reply code from the request (e.g.\ \code{200} if the request was
handled properly); \var{message} is the message string corresponding
-to the reply code; and \var{header} is an instance of the class
+to the reply code; and \var{headers} is an instance of the class
\code{mimetools.Message} containing the headers received from the server.
See the description of the \code{mimetools} module.
\stmodindex{mimetools}