diff --git a/doc/watchexec.1 b/doc/watchexec.1
index ac2c7eb..c95a17d 100644
--- a/doc/watchexec.1
+++ b/doc/watchexec.1
@@ -30,8 +30,8 @@ Comma\-separated list of file extensions to filter by\. Leading dots are allowed
 Ignores modifications from paths that do not match \fIpattern\fR\. This option can be specified multiple times, where a match on any given pattern causes the path to trigger \fIcommand\fR\.
 .
 .TP
-\fB\-k\fR, \fB\-\-kill\fR
-Send \fBSIGKILL\fR to the child process group instead of \fBSIGTERM\fR\.
+\fB\-s\fR, \fB\-\-signal <SIGKILL|SIGHUP|...>\fR
+Sends the specified signal (e\.g\. \fBSIGKILL\fR) to the child process\. Defaults to \fBSIGTERM\fR\.
 .
 .TP
 \fB\-i\fR, \fB\-\-ignore\fR \fIpattern\fR
diff --git a/doc/watchexec.1.html b/doc/watchexec.1.html
index ed03541..765f5cc 100644
--- a/doc/watchexec.1.html
+++ b/doc/watchexec.1.html
@@ -88,7 +88,7 @@
 <dt class="flush"><var>command</var></dt><dd><p>Command to run when watched files are modified, and at startup, unless <code>--postpone</code> is specified. All <var>argument</var>s are passed to <var>command</var>.</p></dd>
 <dt><code>-e</code>, <code>--exts</code> <var>extensions</var></dt><dd><p>Comma-separated list of file extensions to filter by. Leading dots are allowed (.rs) are allowed. (This is a shorthand for <code>-f</code>).</p></dd>
 <dt><code>-f</code>, <code>--filter</code> <var>pattern</var></dt><dd><p>Ignores modifications from paths that do not match <var>pattern</var>. This option can be specified multiple times, where a match on any given pattern causes the path to trigger <var>command</var>.</p></dd>
-<dt><code>-k</code>, <code>--kill</code></dt><dd><p>Send <code>SIGKILL</code> to the child process group instead of <code>SIGTERM</code>.</p></dd>
+<dt><code>-s</code>, <code>--signal</code> <var>SIGNAL</var></dt><dd><p> Sends the specified signal (e.g. <code>SIGKILl</code>) to the child process. Defaults to <code>SIGTERM</code>.</p></dd>
 <dt><code>-i</code>, <code>--ignore</code> <var>pattern</var></dt><dd><p>Ignores modifications from paths that match <var>pattern</var>. This option can be specified multiple times, and a match on any pattern causes the path to be ignored.</p></dd>
 <dt><code>-w</code>, <code>--watch</code> <var>path</var></dt><dd><p>Monitor a specific path for changes. By default, the current working directory is watched. This may be specified multiple times, where a change in any watched directory (and subdirectories) causes <var>command</var> to be executed.</p></dd>
 <dt><code>-r</code>, <code>--restart</code></dt><dd><p>Terminates the child process group if it is still running when subsequent file modifications are detected. By default, sends <code>SIGTERM</code>; use <code>--kill</code> to send <code>SIGKILL</code>.</p></dd>
diff --git a/doc/watchexec.1.ronn b/doc/watchexec.1.ronn
index 4fa6cc0..1b8bbe3 100644
--- a/doc/watchexec.1.ronn
+++ b/doc/watchexec.1.ronn
@@ -22,8 +22,8 @@ Comma-separated list of file extensions to filter by. Leading dots are allowed (
 * `-f`, `--filter` <pattern>:
 Ignores modifications from paths that do not match <pattern>. This option can be specified multiple times, where a match on any given pattern causes the path to trigger <command>.
 
-* `-k`, `--kill`:
-Send `SIGKILL` to the child process group instead of `SIGTERM`.
+* `-s`, `--signal`:
+Sends the specified signal (e.g. `SIGKILL`) to the child process. Defaults to `SIGTERM`.
 
 * `-i`, `--ignore` <pattern>:
 Ignores modifications from paths that match <pattern>. This option can be specified multiple times, and a match on any pattern causes the path to be ignored.