diff --git a/assets/js/src/newsletter_editor/components/save.js b/assets/js/src/newsletter_editor/components/save.js
index 0c61d4276d..8d62556d99 100644
--- a/assets/js/src/newsletter_editor/components/save.js
+++ b/assets/js/src/newsletter_editor/components/save.js
@@ -266,7 +266,6 @@ define([
     },
     validateNewsletter: function (jsonObject) {
       var body = '';
-      var contents;
       if (!App._contentContainer.isValid()) {
         this.showValidationError(App._contentContainer.validationError);
         return;
@@ -282,10 +281,9 @@ define([
         return;
       }
 
-      contents = JSON.stringify(jsonObject);
       if ((App.getNewsletter().get('type') === 'notification') &&
-        contents.indexOf('"type":"automatedLatestContent"') < 0 &&
-        contents.indexOf('"type":"automatedLatestContentLayout"') < 0
+        body.indexOf('"type":"automatedLatestContent"') < 0 &&
+        body.indexOf('"type":"automatedLatestContentLayout"') < 0
       ) {
         this.showValidationError(MailPoet.I18n.t('automatedLatestContentMissing'));
         return;
diff --git a/tests/javascript/newsletter_editor/components/save.spec.js b/tests/javascript/newsletter_editor/components/save.spec.js
index 6eb7178289..3efb5b5caa 100644
--- a/tests/javascript/newsletter_editor/components/save.spec.js
+++ b/tests/javascript/newsletter_editor/components/save.spec.js
@@ -129,10 +129,12 @@ define([
           var newsletter = { get: sinon.stub().withArgs('type').returns('notification') };
           EditorApplication.getNewsletter = sinon.stub().returns(newsletter);
           view.validateNewsletter({
-            content: {
-              blocks: [
-                { type: 'automatedLatestContent' }
-              ]
+            body: {
+              content: {
+                blocks: [
+                  { type: 'automatedLatestContent' }
+                ]
+              }
             }
           });
           expect(hideValidationErrorStub.callCount).to.be.equal(1);