diff --git a/packages/editor/src/dataviews/store/private-actions.ts b/packages/editor/src/dataviews/store/private-actions.ts
index 6906629fc80027..754a02d317a385 100644
--- a/packages/editor/src/dataviews/store/private-actions.ts
+++ b/packages/editor/src/dataviews/store/private-actions.ts
@@ -162,7 +162,7 @@ export const registerPostTypeSchema =
 
 		const fields = [
 			postTypeConfig.supports?.thumbnail &&
-				currentTheme?.[ 'theme-supports' ]?.[ 'post-thumbnails' ] &&
+				currentTheme?.theme_supports?.[ 'post-thumbnails' ] &&
 				featuredImageField,
 			titleField,
 			postTypeConfig.supports?.author && authorField,