diff --git a/waveform-node.js b/waveform-node.js
index d8eaa77..243269f 100644
--- a/waveform-node.js
+++ b/waveform-node.js
@@ -91,6 +91,8 @@ var getDataFromFFMpeg = function(filepath, options, callback){
 				duration *= 60;
 				duration += val;
 			}
+			duration = duration + (parseInt(strList[3]) / 100);
+
 
 			var channels = matches2[2];