diff --git a/doc/motionplus_config.html b/doc/motionplus_config.html
index a13efc52..62b1ed62 100644
--- a/doc/motionplus_config.html
+++ b/doc/motionplus_config.html
@@ -2281,12 +2281,12 @@
 
         <h3><a name="timelapse_container"></a>timelapse_container</h3>
         <ul>
-          <li> Values: mpg, mpeg4 | Default: mpg</li>
+          <li> Values: mpg, mkv | Default: mpg</li>
           Container to be used by timelapse video.
           <ul>
             <li>mpg - Creates mpg file with mpeg-2 encoding. If MotionPlus is shutdown and restarted, new
             pictures will be appended to any previously created file with name indicated for timelapse.</li>
-            <li>mpeg4 - Creates avi file with the default encoding.  If MotionPlus is shutdown and restarted,
+            <li>mkv - Creates mkv file with the default encoding.  If MotionPlus is shutdown and restarted,
             new pictures will create a new file with the name indicated for timelapse.</li>
           </ul>
         </ul>