diff --git a/index.html b/index.html
index 5e1023e..f8bf7a4 100644
--- a/index.html
+++ b/index.html
@@ -601,7 +601,7 @@ path_name_and_extension_to_the_last_file</i></pre></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:
           <dl>
             <dt>fontfile=<i>font_path </dt><dd> Set path to font. For example in OSX: <code>"fontfile=/Library/Fonts/AppleGothic.ttf"</code></dd>
-            <dt>fontsize=<i>font_size </dt><dd> Set font size. <code>24 is a good value for SD. Ideally this is proportional to video size, for example <code>videoheight/12</code></dd>
+            <dt>fontsize=<i>font_size </dt><dd> Set font size. <code>24</code> is a good value for SD. Ideally this is proportional to video size, for example <code>videoheight/12</code></dd>
             <dt>fontfile=<i>font_path </dt><dd> Set path to font. For example in OSX: <code>"fontfile=/Library/Fonts/AppleGothic.ttf"</code></dd>
           </dl>
           The different filters in a complex filter can be divided either by comma or semicolon. The quotation marks allow to insert a space between the filters for readability.</dd>