diff --git a/wp-includes/class-wp-theme-json-resolver.php b/wp-includes/class-wp-theme-json-resolver.php
index 34d3ab9fcf..ea9e5e677f 100644
--- a/wp-includes/class-wp-theme-json-resolver.php
+++ b/wp-includes/class-wp-theme-json-resolver.php
@@ -363,7 +363,7 @@ class WP_Theme_JSON_Resolver {
 	 */
 	public static function theme_has_support() {
 		if ( ! isset( self::$theme_has_support ) ) {
-			self::$theme_has_support = is_readable( get_theme_file_path( 'theme.json' ) );
+			self::$theme_has_support = is_readable( self::get_file_path_from_theme( 'theme.json' ) );
 		}
 
 		return self::$theme_has_support;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index fa1861e3c0..40ec4eb5af 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-52076';
+$wp_version = '5.9-alpha-52077';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.