diff --git a/doc/aria2c.1 b/doc/aria2c.1
index 94a9a661..a91f9057 100644
--- a/doc/aria2c.1
+++ b/doc/aria2c.1
@@ -1,11 +1,11 @@
 .\"     Title: aria2c
 .\"    Author: 
 .\" Generator: DocBook XSL Stylesheets v1.73.1 <http://docbook.sf.net/>
-.\"      Date: 12/10/2007
+.\"      Date: 12/12/2007
 .\"    Manual: 
 .\"    Source: 
 .\"
-.TH "ARIA2C" "1" "12/10/2007" "" ""
+.TH "ARIA2C" "1" "12/12/2007" "" ""
 .\" disable hyphenation
 .nh
 .\" disable justification (adjust text to left margin only)
@@ -344,7 +344,16 @@ The path to the \.torrent file\.
 .PP
 \-\-follow\-torrent=\fItrue\fR|\fIfalse\fR|\fImem\fR
 .RS 4
-If true or mem is specified, when a file whose suffix is \.torrent or content type is application/x\-bittorrent is downloaded, aria2 parses it as a torrent file and downloads files mentioned in it\. If mem is specified, a torrent file is not written to the disk, but is just kept in memory\. If false is specified, the action mentioned above is not taken\. Default: true
+If
+\fItrue\fR
+or
+\fImem\fR
+is specified, when a file whose suffix is "\.torrent" or content type is "application/x\-bittorrent" is downloaded, aria2 parses it as a torrent file and downloads files mentioned in it\. If
+\fImem\fR
+is specified, a torrent file is not written to the disk, but is just kept in memory\. If
+\fIfalse\fR
+is specified, the action mentioned above is not taken\. Default:
+\fItrue\fR
 .RE
 .PP
 \-\-direct\-file\-mapping=\fItrue\fR|\fIfalse\fR
@@ -431,9 +440,30 @@ The location of the preferred server\. A comma\-deliminated list of locations is
 \fIJP,US\fR\.
 .RE
 .PP
+\-\-metalink\-preferred\-protocol=PROTO
+.RS 4
+Specify preferred protocol\. The possible values are
+\fIhttp\fR,
+\fIhttps\fR,
+\fIftp\fR
+and
+\fInone\fR\. Specifiy
+\fInone\fR
+to disable this feature\. Default:
+\fInone\fR
+.RE
+.PP
 \-\-follow\-metalink=\fItrue\fR|\fIfalse\fR|\fImem\fR
 .RS 4
-If true or mem is specified, when a file whose suffix is \.metaink or content type is application/metalink+xml is downloaded, aria2 parses it as a metalink file and downloads files mentioned in it\. If mem is specified, a metalink file is not written to the disk, but is just kept in memory\. If false is specified, the action mentioned above is not taken\. Default:
+If
+\fItrue\fR
+or
+\fImem\fR
+is specified, when a file whose suffix is "\.metaink" or content type is "application/metalink+xml" is downloaded, aria2 parses it as a metalink file and downloads files mentioned in it\. If
+\fImem\fR
+is specified, a metalink file is not written to the disk, but is just kept in memory\. If
+\fIfalse\fR
+is specified, the action mentioned above is not taken\. Default:
 \fItrue\fR
 .RE
 .PP
diff --git a/doc/aria2c.1.txt b/doc/aria2c.1.txt
index 4c0f824d..098396ab 100644
--- a/doc/aria2c.1.txt
+++ b/doc/aria2c.1.txt
@@ -249,13 +249,13 @@ OPTIONS
   The path to the .torrent file.
 
 --follow-torrent='true'|'false'|'mem'::
-  If true or mem is specified, when a file whose suffix is .torrent or content
-  type is application/x-bittorrent is downloaded, aria2 parses it as a torrent
+  If 'true' or 'mem' is specified, when a file whose suffix is ".torrent" or content
+  type is "application/x-bittorrent" is downloaded, aria2 parses it as a torrent
   file and downloads files mentioned in it.
-  If mem is specified, a torrent file is not written to the disk, but is just
+  If 'mem' is specified, a torrent file is not written to the disk, but is just
   kept in memory.
-  If false is specified, the action mentioned above is not taken.
-  Default: true
+  If 'false' is specified, the action mentioned above is not taken.
+  Default: 'true'
 
 --direct-file-mapping='true'|'false'::
   Directly read from and write to each file mentioned in .torrent file.
@@ -317,14 +317,20 @@ OPTIONS
 --metalink-location=LOCATION[,...]::
   The location of the preferred server.
   A comma-deliminated list of locations is acceptable, for example, 'JP,US'.
+
+--metalink-preferred-protocol=PROTO::
+  Specify preferred protocol.
+  The possible values are 'http', 'https', 'ftp' and 'none'.
+  Specifiy 'none' to disable this feature.
+  Default: 'none'
  
 --follow-metalink='true'|'false'|'mem'::
-  If true or mem is specified, when a file whose suffix is .metaink or content
-  type is application/metalink+xml is downloaded, aria2 parses it as a metalink
+  If 'true' or 'mem' is specified, when a file whose suffix is ".metaink" or content
+  type is "application/metalink+xml" is downloaded, aria2 parses it as a metalink
   file and downloads files mentioned in it.
-  If mem is specified, a metalink file is not written to the disk, but is just
+  If 'mem' is specified, a metalink file is not written to the disk, but is just
   kept in memory.
-  If false is specified, the action mentioned above is not taken.
+  If 'false' is specified, the action mentioned above is not taken.
   Default: 'true'
 
 -v, --version::