diff --git a/entry_types/scrolled/package/src/contentElements/iframeEmbed/editor.js b/entry_types/scrolled/package/src/contentElements/iframeEmbed/editor.js
index e01affb44c..6caf1cdc94 100644
--- a/entry_types/scrolled/package/src/contentElements/iframeEmbed/editor.js
+++ b/entry_types/scrolled/package/src/contentElements/iframeEmbed/editor.js
@@ -16,7 +16,7 @@ editor.contentElementTypes.register('iframeEmbed', {
 
   configurationEditor({entry}) {
     this.tab('general', function() {
-      this.input('source', TextInputView);
+      this.input('source', TextInputView, {maxLength: 2000});
       this.input('requireConsent', CheckBoxInputView);
       this.view(InfoBoxView, {
         level: 'error',