diff --git a/corehq/apps/analytics/static/analytix/js/gtm.js b/corehq/apps/analytics/static/analytix/js/gtm.js
index d6684ebbbd025..720c502785c34 100644
--- a/corehq/apps/analytics/static/analytix/js/gtm.js
+++ b/corehq/apps/analytics/static/analytix/js/gtm.js
@@ -32,13 +32,15 @@ hqDefine('analytix/js/gtm', [
             var data = {
                 event: eventName,
             };
-            if (eventData){
+            if (eventData) {
                 _.extend(data, eventData);
             }
             window.dataLayer.push(data);
-            _logger.verbose.log(eventName, ['window.dataLayer.push']);
+            _logger.verbose.log(eventName, 'window.dataLayer.push');
         }).fail(function () {
-            callbackFn();
+            if (_.isFunction(callbackFn)) {
+                callbackFn();
+            }
         });
     };