diff --git a/doc/h2load.1 b/doc/h2load.1
index 4e7a5904..f664a313 100644
--- a/doc/h2load.1
+++ b/doc/h2load.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.46.4.
-.TH H2LOAD "1" "October 2014" "h2load nghttp2/0.6.5" "User Commands"
+.TH H2LOAD "1" "November 2014" "h2load nghttp2/0.6.6" "User Commands"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .SH SYNOPSIS
diff --git a/doc/nghttp.1 b/doc/nghttp.1
index 2298619c..7f9cb418 100644
--- a/doc/nghttp.1
+++ b/doc/nghttp.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.46.4.
-.TH NGHTTP "1" "October 2014" "nghttp nghttp2/0.6.5" "User Commands"
+.TH NGHTTP "1" "November 2014" "nghttp nghttp2/0.6.6" "User Commands"
 .SH NAME
 nghttp \- HTTP/2 experimental client
 .SH SYNOPSIS
@@ -14,7 +14,9 @@ Specify URI to access.
 .TP
 \fB\-v\fR, \fB\-\-verbose\fR
 Print  debug information  such  as reception  and
-transmission of frames and name/value pairs.
+transmission  of  frames  and  name/value  pairs.
+Specifying this  option multiple  times increases
+verbosity.
 .TP
 \fB\-n\fR, \fB\-\-null\-out\fR
 Discard downloaded data.
diff --git a/doc/nghttp.1.rst b/doc/nghttp.1.rst
index 0d78654e..885189de 100644
--- a/doc/nghttp.1.rst
+++ b/doc/nghttp.1.rst
@@ -28,7 +28,9 @@ OPTIONS
 
     
     Print  debug information  such  as reception  and
-    transmission of frames and name/value pairs.
+    transmission  of  frames  and  name/value  pairs.
+    Specifying this  option multiple  times increases
+    verbosity.
 
 .. option:: -n, --null-out
 
diff --git a/doc/nghttpd.1 b/doc/nghttpd.1
index e3b83489..110a0946 100644
--- a/doc/nghttpd.1
+++ b/doc/nghttpd.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.46.4.
-.TH NGHTTPD "1" "October 2014" "nghttpd nghttp2/0.6.5" "User Commands"
+.TH NGHTTPD "1" "November 2014" "nghttpd nghttp2/0.6.6" "User Commands"
 .SH NAME
 nghttpd \- HTTP/2 experimental server
 .SH SYNOPSIS
diff --git a/doc/nghttpx.1 b/doc/nghttpx.1
index f4e3f602..ffc849f1 100644
--- a/doc/nghttpx.1
+++ b/doc/nghttpx.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.46.4.
-.TH NGHTTPX "1" "October 2014" "nghttpx nghttp2/0.6.5" "User Commands"
+.TH NGHTTPX "1" "November 2014" "nghttpx nghttp2/0.6.6" "User Commands"
 .SH NAME
 nghttpx \- HTTP/2 experimental proxy
 .SH SYNOPSIS
@@ -328,8 +328,9 @@ URI, suitable for use as a forward proxy.
 .TP
 \fB\-L\fR, \fB\-\-log\-level=\fR<LEVEL>
 Set the  severity level  of log  output.  <LEVEL>
-must be one of INFO, WARNING, ERROR and FATAL.
-Default: WARNING
+must  be one  of  INFO, NOTICE,  WARN, ERROR  and
+FATAL.
+Default: NOTICE
 .TP
 \fB\-\-accesslog\-file=\fR<PATH>
 Set path  to write  access log.  To  reopen file,
diff --git a/doc/nghttpx.1.rst b/doc/nghttpx.1.rst
index c876c0ea..59702ae7 100644
--- a/doc/nghttpx.1.rst
+++ b/doc/nghttpx.1.rst
@@ -462,8 +462,9 @@ Logging
 
     
     Set the  severity level  of log  output.  <LEVEL>
-    must be one of INFO, WARNING, ERROR and FATAL.
-    Default: WARNING
+    must  be one  of  INFO, NOTICE,  WARN, ERROR  and
+    FATAL.
+    Default: NOTICE
 
 .. option:: --accesslog-file=<PATH>