diff --git a/src/js/BookReader.js b/src/js/BookReader.js
index c8c76a26c..f3ebde7ae 100644
--- a/src/js/BookReader.js
+++ b/src/js/BookReader.js
@@ -1795,7 +1795,7 @@ BookReader.prototype.updateFirstIndex = function(
   if (this.options.initialSearchTerm && !suppressFragmentChange) {
     this.suppressFragmentChange = false;
   }
-  this.trigger(EVENTS.pageChanged);
+  this.trigger(BookReader.eventNames.pageChanged);
   this.updateNavIndexThrottled(index);
 };