diff --git a/blocks/library/html/index.js b/blocks/library/html/index.js
index 554781c834cade..0ff013ed65a14a 100644
--- a/blocks/library/html/index.js
+++ b/blocks/library/html/index.js
@@ -16,7 +16,7 @@ import './style.scss';
 import { registerBlockType, query } from '../../api';
 import BlockControls from '../../block-controls';
 
-const { children } = query;
+const { html } = query;
 
 registerBlockType( 'core/html', {
 	title: __( 'Custom HTML' ),
@@ -28,7 +28,7 @@ registerBlockType( 'core/html', {
 	className: false,
 
 	attributes: {
-		content: children(),
+		content: html(),
 	},
 
 	edit: class extends Component {
diff --git a/blocks/test/fixtures/core-html.json b/blocks/test/fixtures/core-html.json
index 1a1d7f04b9489e..c5f2daf6b551bc 100644
--- a/blocks/test/fixtures/core-html.json
+++ b/blocks/test/fixtures/core-html.json
@@ -3,17 +3,7 @@
         "uid": "_uid_0",
         "name": "core/html",
         "attributes": {
-            "content": [
-                {
-                    "children": "Some HTML code",
-                    "type": "h1"
-                },
-                "\n",
-                {
-                    "children": "This text will scroll from right to left",
-                    "type": "marquee"
-                }
-            ]
+            "content": "<h1>Some HTML code</h1>\n<marquee>This text will scroll from right to left</marquee>"
         }
     }
 ]