diff --git a/index.html b/index.html
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+++ b/index.html
@@ -598,7 +598,7 @@ path_name_and_extension_to_the_last_file</i></pre></dd>
         <dl>
           <dt>ffmpeg</dt><dd>starts the command</dd>
           <dt>-i <i>input_file</i></dt><dd>path, name and extension of the input file</dd>
-          <dt>-vf "drawtext=fontfile=<i>font_path</i>:fontsize=<i>font_size</i>:text=<i>watermark_text</i>:fontcolor=<i>font_colour</i>:alpha=0.4:x=w/2-tw/2:y=h/2-th/2"</dt><dd>This calls the drawtext filters with the following options:
+          <dt>-vf drawtext=</dt><dd>This calls the drawtext filters with the following options:
           <dl>
             <dt>fontfile=<i>font_path</i></dt><dd> Set path to font. For example in OSX: <code>"fontfile=/Library/Fonts/AppleGothic.ttf"</code></dd>
             <dt>fontsize=<i>font_size</i></dt><dd> Set font size. <code>24</code> is a good value for SD. Ideally this value is proportional to video size, for example use ffprobe to acquire video height and divide by 14.</dd>