diff --git a/index.html b/index.html
index 8b3d38f..c16e31d 100644
--- a/index.html
+++ b/index.html
@@ -810,7 +810,7 @@ e.g.: <code>ffmpeg -f concat -safe 0 -i mylist.txt -c copy <i>output_file</i></c
   <!-- ends Join files together -->
 
   <!-- Play image sequence -->
-  <span data-toggle="modal" data-target="#play_im_sq"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Play an image sequence directly as moving images">Play an image sequence</button></span>
+  <span data-toggle="modal" data-target="#play_im_seq"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Play an image sequence directly as moving images">Play an image sequence</button></span>
   <div id="play_im_seq" class="modal fade" tabindex="-1" role="dialog">
     <div class="modal-dialog modal-lg">
       <div class="modal-content">