diff --git a/core/modules/utils/utils.js b/core/modules/utils/utils.js
index 8dba0ce0a..672961a40 100644
--- a/core/modules/utils/utils.js
+++ b/core/modules/utils/utils.js
@@ -651,7 +651,7 @@ exports.extractVersionInfo = function() {
 Get the animation duration in ms
 */
 exports.getAnimationDuration = function() {
-	return parseInt($tw.wiki.getTiddlerText("$:/config/AnimationDuration","400"),10);
+	return parseInt($tw.wiki.getTiddlerText("$:/config/AnimationDuration","400"),10) || 0;
 };
 
 /*