diff --git a/doc/h2load.1 b/doc/h2load.1
index 78ad9443..15e86d0a 100644
--- a/doc/h2load.1
+++ b/doc/h2load.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "H2LOAD" "1" "Oct 09, 2016" "1.16.0-DEV" "nghttp2"
+.TH "H2LOAD" "1" "Oct 11, 2016" "1.16.0-DEV" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .
diff --git a/doc/nghttp.1 b/doc/nghttp.1
index b8622d5e..048fd81c 100644
--- a/doc/nghttp.1
+++ b/doc/nghttp.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTP" "1" "Oct 09, 2016" "1.16.0-DEV" "nghttp2"
+.TH "NGHTTP" "1" "Oct 11, 2016" "1.16.0-DEV" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 client
 .
diff --git a/doc/nghttpd.1 b/doc/nghttpd.1
index 9ded4038..5f0aa226 100644
--- a/doc/nghttpd.1
+++ b/doc/nghttpd.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPD" "1" "Oct 09, 2016" "1.16.0-DEV" "nghttp2"
+.TH "NGHTTPD" "1" "Oct 11, 2016" "1.16.0-DEV" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 server
 .
diff --git a/doc/nghttpx.1 b/doc/nghttpx.1
index cc9dcd6d..4ec78498 100644
--- a/doc/nghttpx.1
+++ b/doc/nghttpx.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPX" "1" "Oct 09, 2016" "1.16.0-DEV" "nghttp2"
+.TH "NGHTTPX" "1" "Oct 11, 2016" "1.16.0-DEV" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 proxy
 .
@@ -456,6 +456,14 @@ Default: \fB30s\fP
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-\-backend\-connect\-timeout=<DURATION>
+Specify  timeout before  establishing TCP  connection to
+backend.
+.sp
+Default: \fB30s\fP
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-\-backend\-keep\-alive\-timeout=<DURATION>
 Specify keep\-alive timeout for backend connection.
 .sp
diff --git a/doc/nghttpx.1.rst b/doc/nghttpx.1.rst
index aeffb0cb..e80fffa4 100644
--- a/doc/nghttpx.1.rst
+++ b/doc/nghttpx.1.rst
@@ -417,6 +417,13 @@ Timeout
 
     Default: ``30s``
 
+.. option:: --backend-connect-timeout=<DURATION>
+
+    Specify  timeout before  establishing TCP  connection to
+    backend.
+
+    Default: ``30s``
+
 .. option:: --backend-keep-alive-timeout=<DURATION>
 
     Specify keep-alive timeout for backend connection.