diff --git a/packages/block-library/src/classic/edit.js b/packages/block-library/src/classic/edit.js
index 8195e51006af4..9f80cbd137f5b 100644
--- a/packages/block-library/src/classic/edit.js
+++ b/packages/block-library/src/classic/edit.js
@@ -70,7 +70,7 @@ export default class ClassicEdit extends Component {
 		} = this.props;
 
 		const editor = window.tinymce.get( `editor-${ clientId }` );
-		const currentContent = editor.getContent();
+		const currentContent = editor?.getContent();
 
 		if (
 			prevProps.attributes.content !== content &&