diff --git a/doc/en/linkchecker.1 b/doc/en/linkchecker.1
index d6d8902b..3a29e5bf 100644
--- a/doc/en/linkchecker.1
+++ b/doc/en/linkchecker.1
@@ -85,7 +85,7 @@ Print available check plugins and exit.
 \fB\-D\fP\fISTRING\fP, \fB\-\-debug=\fP\fISTRING\fP
 Print debugging output for the given logger.
 Available loggers are \fBcmdline\fP, \fBchecking\fP,
-\fBcache\fP, \fBdns\fP, \fBplugins\fP and \fBall\fP.
+\fBcache\fP, \fBdns\fP, \fBplugin\fP and \fBall\fP.
 Specifying \fBall\fP is an alias for specifying all available loggers.
 The option can be given multiple times to debug with more
 than one logger.
diff --git a/doc/web/media/man1/linkchecker.1.html b/doc/web/media/man1/linkchecker.1.html
index aa56d9b4..00dd851e 100644
--- a/doc/web/media/man1/linkchecker.1.html
+++ b/doc/web/media/man1/linkchecker.1.html
@@ -112,7 +112,7 @@ linkchecker - command line client to check HTML documents and websites for
 <dl class="Bl-tag">
   <dt><b>-D</b><i>STRING</i>, <b>--debug=</b><i>STRING</i></dt>
   <dd>Print debugging output for the given logger. Available loggers are
-      <b>cmdline</b>, <b>checking</b>, <b>cache</b>, <b>dns</b>, <b>plugins</b>
+      <b>cmdline</b>, <b>checking</b>, <b>cache</b>, <b>dns</b>, <b>plugin</b>
       and <b>all</b>. Specifying <b>all</b> is an alias for specifying all
       available loggers. The option can be given multiple times to debug with
       more than one logger. For accurate results, threading will be disabled