diff --git a/debian/copyright b/debian/copyright
index 29897a5..c5dff16 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -57,7 +57,7 @@
 Copyright: 2012 George Danchev <danchev@spnet.net>
 License: GPL-2+
 
-Files: which-pkg-broke-build
+Files: which-pkg-broke-build which-pkg-broke-build.1
 Copyright: 2016 Axel Beckert <abe@debian.org>
 License: GPL-2+
 
diff --git a/debian/manpages b/debian/manpages
index 998fe94..b805dfc 100644
--- a/debian/manpages
+++ b/debian/manpages
@@ -10,3 +10,4 @@
 dpigs.1
 popbugs.1
 which-pkg-broke.1
+which-pkg-broke-build.1
diff --git a/which-pkg-broke-build.1 b/which-pkg-broke-build.1
new file mode 100644
index 0000000..85ddc6d
--- /dev/null
+++ b/which-pkg-broke-build.1
@@ -0,0 +1,65 @@
+.\" which-pkg-broke.1 - find which package might have broken the build
+.\" of another package.
+.\" Copyright (C) 2006 Javier Fernandez-Sanguino
+.\" Copyright (C) 2016 Axel Beckert
+.\"
+.\" This program is free software; you can redistribute it and/or modify
+.\" it under the terms of the GNU General Public License as published by
+.\" the Free Software Foundation; either version 2, or (at your option)
+.\" any later version.
+.\"
+.\" On Debian systems, a copy of the GNU General Public License version 2
+.\" can be found in /usr/share/common-licenses/GPL-2.
+.TH which\-pkg\-broke\-build 1 "December 11 2016" "debian\-goodies" "debian\-goodies"
+.SH NAME
+which\-pkg\-broke\-build \- find which package might have broken another package's build
+.SH SYNOPSIS
+\fBwhich\-pkg\-broke\-build\fR [.]
+.br
+\fBwhich\-pkg\-broke\-build\fR \fI<source-directory>\fR
+.br
+\fBwhich\-pkg\-broke\-build\fR \fI<source-package>\fR
+.SH DESCRIPTION
+The
+.B which\-pkg\-broke\-build
+program will retrieve a list of all (recursive) build-dependencies of
+the named package sorted by the time they were installed on the system
+(as determined from the mtime information of
+.B /var/lib/dpkg/info/*.list
+\).
+
+This tool allows a package developer to obtain information that might
+correlate installation of package build-dependencies with a package
+build breakage in order to find which build-dependency update might be
+responsible for the breakage.
+
+.SH PARAMETERS
+If there's a parameter and it's an existing directory,
+.B which\-pkg\-broke\-build
+assumes that this is an unpacked Debian source package and looks for
+its build-dependencies.
+
+If there's a parameter and it's not an existing directory,
+.B which\-pkg\-broke\-build
+assumes that it's a source package name and looks for that source
+package's build-dependencies.
+
+If there's no parameter,
+.B which\-pkg\-broke\-build
+assumes that the current directory contains an unpacked Debian source
+package and looks for its build-dependencies.
+
+.SH BUGS
+.B which\-pkg\-broke\-build
+is horribly slow and inefficient as it calls
+.B which\-pkg\-broke
+once for each explicit build-dependency (and once for the package
+build-essential). It hence checks packages which are dependencies of
+multiple explicit build-dependencies also multiple times.
+
+.SH SEE ALSO
+.BR which\-pkg\-broke(1)
+
+.SH AUTHOR
+.B which\-pkg\-broke\-build
+was written by Axel Beckert <abe@debian.org>