diff --git a/packages/block-library/src/query/edit/inspector-controls/format-controls.js b/packages/block-library/src/query/edit/inspector-controls/format-controls.js
index d26fd9d81ce6f..15c95f3bbba2e 100644
--- a/packages/block-library/src/query/edit/inspector-controls/format-controls.js
+++ b/packages/block-library/src/query/edit/inspector-controls/format-controls.js
@@ -68,7 +68,7 @@ export default function FormatControls( { onChange, query: { format } } ) {
 		.filter( Boolean );
 
 	const suggestions = formats
-		.filter( ( item ) => ! format.includes( item.value ) )
+		.filter( ( item ) => ! normalizedFormats.includes( item.value ) )
 		.map( ( item ) => item.label );
 
 	return (