diff --git a/packages/block-library/src/heading/heading-level-dropdown.js b/packages/block-library/src/heading/heading-level-dropdown.js
index 592787b5fa9ddc..d8a4eae0ab34db 100644
--- a/packages/block-library/src/heading/heading-level-dropdown.js
+++ b/packages/block-library/src/heading/heading-level-dropdown.js
@@ -60,6 +60,7 @@ export default function HeadingLevelDropdown( { selectedLevel, onChange } ) {
 						onClick() {
 							onChange( targetLevel );
 						},
+						role: 'menuitemradio',
 					};
 				}
 			} ) }
diff --git a/packages/block-library/src/site-title/edit/level-toolbar.js b/packages/block-library/src/site-title/edit/level-toolbar.js
index 442a551afb9906..704c948d336731 100644
--- a/packages/block-library/src/site-title/edit/level-toolbar.js
+++ b/packages/block-library/src/site-title/edit/level-toolbar.js
@@ -21,6 +21,7 @@ export default function LevelControl( { level, onChange } ) {
 					  sprintf( __( 'Heading %d' ), currentLevel ),
 			isActive,
 			onClick: () => onChange( currentLevel ),
+			role: 'menuitemradio',
 		};
 	} );
 	return (