diff --git a/linkchecker b/linkchecker
index d48b7ef1..066b9f2e 100755
--- a/linkchecker
+++ b/linkchecker
@@ -125,6 +125,7 @@ For single-letter option arguments the space is not a necessity. So
 --warning-size-bytes=bytes
         Print a warning if content size is available and exceeds the given
         number of bytes.
+        This option implies -w.
 """) % (linkcheck.log.LoggerKeys, _profile)
 
 Notes = linkcheck._("""NOTES
diff --git a/linkchecker.1 b/linkchecker.1
index 7728f2a8..dfe1b496 100644
--- a/linkchecker.1
+++ b/linkchecker.1
@@ -130,6 +130,11 @@ their content.
 Use this to check for pages that contain some form of error, for example
 'This page has moved' or 'Oracle Application Server error'.
 This option implies \fB-w\fP.
+.TP
+\fB--warning-size-bytes=\fIbytes\fP
+Print a warning if content size is available and exceeds the given
+number of \fIbytes\fP.
+This option implies \fB-w\fP.
 .SH NOTES
 LinkCheckers commandline parser treats \fIftp.\fP links like \fIftp://ftp.\fP
 and \fIwww.\fP links like \fIhttp://www.\fP.