diff --git a/client/gutenberg/extensions/tiled-gallery/editor.js b/client/gutenberg/extensions/tiled-gallery/editor.js
index <HASH>..<HASH> 100644
--- a/client/gutenberg/extensions/tiled-gallery/editor.js
+++ b/client/gutenberg/extensions/tiled-gallery/editor.js
@@ -91,6 +91,7 @@ export const settings = {
 	styles: LAYOUT_STYLES,
 	supports: {
 		align: true,
+		html: false,
 	},
 	title: __( 'Tiled gallery' ),
 	transforms: {
Gutenberg: Disallow Tiled Gallery to be edited as HTML (#<I>)