diff --git a/plugin/math/math.js b/plugin/math/math.js
index 104d0e594c2fa642fcb2999afe04363b72266ec5..4e3402e5ce6a58a83e8db25071e38ed60ab78bf0 100755
--- a/plugin/math/math.js
+++ b/plugin/math/math.js
@@ -52,7 +52,7 @@ var RevealMath = window.RevealMath || (function(){
 		// IE
 		script.onreadystatechange = function() {
 			if ( this.readyState === 'loaded' ) {
-				finish.call();
+				finish();
 			}
 		}