diff --git a/doc/h2load.1 b/doc/h2load.1
index dd63c682..634385c9 100644
--- a/doc/h2load.1
+++ b/doc/h2load.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "H2LOAD" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
+.TH "H2LOAD" "1" "Aug 25, 2016" "1.14.0" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .
diff --git a/doc/nghttp.1 b/doc/nghttp.1
index 5d3f3eaa..6a711cc6 100644
--- a/doc/nghttp.1
+++ b/doc/nghttp.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTP" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
+.TH "NGHTTP" "1" "Aug 25, 2016" "1.14.0" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 client
 .
diff --git a/doc/nghttpd.1 b/doc/nghttpd.1
index 43540382..9eb17d73 100644
--- a/doc/nghttpd.1
+++ b/doc/nghttpd.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPD" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
+.TH "NGHTTPD" "1" "Aug 25, 2016" "1.14.0" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 server
 .
diff --git a/doc/nghttpx.1 b/doc/nghttpx.1
index c4548174..a27453ee 100644
--- a/doc/nghttpx.1
+++ b/doc/nghttpx.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPX" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
+.TH "NGHTTPX" "1" "Aug 25, 2016" "1.14.0" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 proxy
 .
@@ -938,6 +938,12 @@ $ssl_session_id: session ID for SSL/TLS connection.
 .IP \(bu 2
 $ssl_session_reused:  "r"   if  SSL/TLS   session  was
 reused.  Otherwise, "."
+.IP \(bu 2
+$backend_host:  backend  host   used  to  fulfill  the
+request.  "\-" if backend host is not available.
+.IP \(bu 2
+$backend_port:  backend  port   used  to  fulfill  the
+request.  "\-" if backend host is not available.
 .UNINDENT
 .sp
 The  variable  can  be  enclosed  by  "{"  and  "}"  for
diff --git a/doc/nghttpx.1.rst b/doc/nghttpx.1.rst
index 20236781..a8b292e7 100644
--- a/doc/nghttpx.1.rst
+++ b/doc/nghttpx.1.rst
@@ -847,6 +847,10 @@ Logging
     * $ssl_session_id: session ID for SSL/TLS connection.
     * $ssl_session_reused:  "r"   if  SSL/TLS   session  was
       reused.  Otherwise, "."
+    * $backend_host:  backend  host   used  to  fulfill  the
+      request.  "-" if backend host is not available.
+    * $backend_port:  backend  port   used  to  fulfill  the
+      request.  "-" if backend host is not available.
 
     The  variable  can  be  enclosed  by  "{"  and  "}"  for
     disambiguation (e.g., ${remote_addr}).