diff --git a/js/error_report.js b/js/error_report.js
index 3fdbb69f3d..c3765304d0 100644
--- a/js/error_report.js
+++ b/js/error_report.js
@@ -213,7 +213,7 @@ var ErrorReport = {
             "current_url": window.location.href,
             "microhistory": ErrorReport._get_microhistory()
         };
-        if (typeof AJAX.cache.pages[this.current - 1] === 'undefined') {
+        if (typeof AJAX.cache.pages[AJAX.cache.current - 1] !== 'undefined') {
            report_data.scripts = AJAX.cache.pages[AJAX.cache.current - 1].scripts.map(
                 function (script) {
                     return script.name;