diff --git a/build/files-checker.php b/build/files-checker.php
index 66c44bd971..20d8b4b5f3 100644
--- a/build/files-checker.php
+++ b/build/files-checker.php
@@ -49,6 +49,7 @@ $expectedFiles = [
 	'build',
 	'buildjsdocs.sh',
 	'CHANGELOG.md',
+	'CODE_OF_CONDUCT.md',
 	'composer.json',
 	'config',
 	'console.php',