diff --git a/build/files-checker.php b/build/files-checker.php
index a1fa223ed11c2845a75f9464802c1c9296d0be90..2ca726c3b14d8e96d11116170ffff3f4ae70ba3d 100644
--- a/build/files-checker.php
+++ b/build/files-checker.php
@@ -75,6 +75,9 @@ $expectedFiles = [
 	'tests',
 	'themes',
 	'version.php',
+	'webpack.common.js',
+	'webpack.dev.js',
+	'webpack.prod.js',
 ];
 $actualFiles = [];