diff --git a/doc/ChangeLog b/doc/ChangeLog
index 7894426a..d285c7d8 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,7 @@
+2004-11-20  Hans-Andreas Engel  <engel@node.ch>  
+	
+	* wget.texi: Describe limitations of combining `-O' with `-k'.
+
 2004-05-13  Nico R.  <n-roeser@gmx.net>
 
 	* Makefile.in: Allow building in a separate tree with source tree
diff --git a/doc/wget.texi b/doc/wget.texi
index 3b518d53..e1389fc4 100644
--- a/doc/wget.texi
+++ b/doc/wget.texi
@@ -518,8 +518,11 @@ which are not retried.
 @itemx --output-document=@var{file}
 The documents will not be written to the appropriate files, but all will
 be concatenated together and written to @var{file}.  If @var{file}
-already exists, it will be overwritten.  If the @var{file} is @samp{-},
-the documents will be written to standard output.
+already exists, it will be overwritten.  If the @var{file} is @samp{-}, 
+the documents will be written to standard output (disabling @samp{-k}).
+ 
+Note that a combination with @samp{-k} is only well-defined for downloading
+a single document.
 
 @cindex clobbering, file
 @cindex downloading multiple times