diff --git a/editions/dev/tiddlers/javascript-widget-tutorial/hello-attribute-optimized.js b/editions/dev/tiddlers/javascript-widget-tutorial/hello-attribute-optimized.js
index beb650cb5..66418be07 100644
--- a/editions/dev/tiddlers/javascript-widget-tutorial/hello-attribute-optimized.js
+++ b/editions/dev/tiddlers/javascript-widget-tutorial/hello-attribute-optimized.js
@@ -34,7 +34,7 @@ Refresh if the attribute value changed since render
 MyWidget.prototype.refresh = function(changedTiddlers) {
 	// Find which attributes have changed
 	var changedAttributes = this.computeAttributes();
-	if(changedAttributes.message) {
+	if (changedAttributes.message) {
 		this.refreshSelf();
 		return true;
 	} else {