diff --git a/js/h5p-x-api.js b/js/h5p-x-api.js
index 08908bf..9fc6758 100644
--- a/js/h5p-x-api.js
+++ b/js/h5p-x-api.js
@@ -93,7 +93,13 @@ H5P.EventDispatcher.prototype.triggerXAPIScored = function (score, maxScore, ver
 };
 
 H5P.EventDispatcher.prototype.setActivityStarted = function() {
-  this.activityStartTime = Date.now();
+  if (this.activityStartTime === undefined) {
+    // Don't trigger xAPI events in the editor
+    if (H5PIntegration.contents['cid-' + this.contentId] !== undefined) {
+      this.triggerXAPI('attempted');
+    }
+    this.activityStartTime = Date.now();
+  }
 };
 
 /**
@@ -108,4 +114,4 @@ H5P.xAPICompletedListener = function (event) {
     var contentId = event.getVerifiedStatementValue(['object', 'definition', 'extensions', 'http://h5p.org/x-api/h5p-local-content-id']);
     H5P.setFinished(contentId, score, maxScore);
   }
-};
+};
\ No newline at end of file