diff --git a/packages/block-library/src/table/block.json b/packages/block-library/src/table/block.json
index 27dc5d38703986..15e66ac2671ff8 100644
--- a/packages/block-library/src/table/block.json
+++ b/packages/block-library/src/table/block.json
@@ -19,6 +19,7 @@
 		"alignAllColumns": {
 			"type": "string",
 			"source": "attribute",
+			"selector": "table",
 			"attribute": "data-align-all-columns"
 		},
 		"head": {
diff --git a/packages/block-library/src/table/save.js b/packages/block-library/src/table/save.js
index 1d24a7d7975cc2..db6e694b7eb45d 100644
--- a/packages/block-library/src/table/save.js
+++ b/packages/block-library/src/table/save.js
@@ -69,9 +69,6 @@ export default function save( { attributes } ) {
 												: undefined
 										}
 										data-align={ align }
-										data-align-all-columns={
-											attributes.alignAllColumns
-										}
 										tagName={ tag }
 										value={ content }
 										key={ cellIndex }
@@ -95,6 +92,7 @@ export default function save( { attributes } ) {
 			<table
 				className={ classes === '' ? undefined : classes }
 				style={ { ...colorProps.style, ...borderProps.style } }
+				data-align-all-columns={ attributes.alignAllColumns }
 			>
 				<Section type="head" rows={ head } />
 				<Section type="body" rows={ body } />