diff --git a/lib/compat/wordpress-6.1/class-wp-theme-json-6-1.php b/lib/compat/wordpress-6.1/class-wp-theme-json-6-1.php
index 99a83c0f33b54c..17f10586ace019 100644
--- a/lib/compat/wordpress-6.1/class-wp-theme-json-6-1.php
+++ b/lib/compat/wordpress-6.1/class-wp-theme-json-6-1.php
@@ -647,7 +647,11 @@ public function get_stylesheet( $types = array( 'variables', 'styles', 'presets'
 		$processor = new WP_Style_Engine_Processor_Gutenberg();
 		$processor->add_css_string( $stylesheet );
 
-		return $processor->get_css();
+		return $processor->get_css(
+			array(
+				'prettify' => defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG,
+			)
+		);
 	}
 
 	/**