How to remove shortcodes from excerpt

This plugin is really neat and works fine!
I just came across a minor annoyance: post excerpts that include shortcodes (that is: any text with [code] inside) from any other plugin is shown under the image.

Simple fix, get to line 195 and replace it with this:

<?php if (has_excerpt ($post->ID)) the_excerpt(); else echo '<p>' . strip_shortcodes(wp_trim_words( get_the_content(), 20 )) . '</p>'; #this is where shortcodes get nasty ?>

No more shortcodes!
Thanks,
Steve