diff --git a/doc/Makefile b/doc/Makefile
index 9a1ee1940..284c50c10 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -7,6 +7,7 @@ doc-wrongdir:
 MANPAGES := doc/lightning-cli.1 \
 	doc/lightningd-config.5 \
 	doc/lightning-autocleaninvoice.7 \
+	doc/lightning-check.7 \
 	doc/lightning-close.7 \
 	doc/lightning-connect.7 \
 	doc/lightning-decodepay.7 \
diff --git a/doc/lightning-check.7 b/doc/lightning-check.7
new file mode 100644
index 000000000..24e59c9e2
--- /dev/null
+++ b/doc/lightning-check.7
@@ -0,0 +1,52 @@
+'\" t
+.\"     Title: lightning-check
+.\"    Author: [see the "AUTHOR" section]
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 12/07/2018
+.\"    Manual: \ \&
+.\"    Source: \ \&
+.\"  Language: English
+.\"
+.TH "LIGHTNING\-CHECK" "7" "12/07/2018" "\ \&" "\ \&"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+lightning-check \- Command for verifying parameters\&.
+.SH "SYNOPSIS"
+.sp
+\fBcheck\fR \fIcommand_to_check\fR [\fIparameters\fR]
+.SH "DESCRIPTION"
+.sp
+The \fBcheck\fR command verifies another command\(cqs parameters without running it\&.
+.sp
+The \fIcommand_to_check\fR is the name of the relevant command\&.
+.sp
+\fIparameters\fR is the command\(cqs parameters\&.
+.sp
+This does not guarantee successful execution of the command in all cases\&. For example, a call to \fBgetroute\fR may still fail to find a route even if checking the parameters succeeds\&.
+.SH "RETURN VALUE"
+.sp
+On success, the \fIcommand_to_check\fR is returned\&. On failure, the relevant RPC error is returned\&.
+.SH "AUTHOR"
+.sp
+Mark Beckwith <wythe@intrig\&.com> and Rusty Russell <rusty@rustcorp\&.com\&.au> are mainly responsible\&.
+.SH "RESOURCES"
+.sp
+Main web site: https://github\&.com/ElementsProject/lightning
diff --git a/doc/lightning-check.7.txt b/doc/lightning-check.7.txt
new file mode 100644
index 000000000..32a4a2d46
--- /dev/null
+++ b/doc/lightning-check.7.txt
@@ -0,0 +1,37 @@
+LIGHTNING-CHECK(7)
+==================
+:doctype: manpage
+
+NAME
+----
+lightning-check - Command for verifying parameters
+
+SYNOPSIS
+--------
+*check* 'command_to_check' ['parameters']
+
+DESCRIPTION
+-----------
+The *check* RPC command verifies another command's parameters without running it.
+
+The 'command_to_check' is the name of the relevant command.
+
+'parameters' is the command's parameters.
+
+This does not guarantee successful execution of the command in all cases.
+For example, a call to lightning-getroute(7) may still fail to find a route even if
+checking the parameters succeeds.
+
+RETURN VALUE
+------------
+On success, the 'command_to_check' is returned.
+On failure, the relevant RPC error is returned.
+
+AUTHOR
+------
+Mark Beckwith <wythe@intrig.com> and Rusty Russell <rusty@rustcorp.com.au>
+are mainly responsible.
+
+RESOURCES
+---------
+Main web site: https://github.com/ElementsProject/lightning