diff --git a/build/build.xml b/build/build.xml
index 5354b5d48c..d3489ab607 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -101,6 +101,7 @@
 				-s
 				--extensions=php
 				--standard=build/code_sniffer/ruleset-php-extensions.xml
+				--ignore=${project.basedir}/phpBB/ext/*/tests/*
 				phpBB/ext"
 			dir="." returnProperty="retval-php-ext" passthru="true" />
 		<if>
diff --git a/build/code_sniffer/ruleset-php-legacy-core.xml b/build/code_sniffer/ruleset-php-legacy-core.xml
index a093309a01..55f2461a04 100644
--- a/build/code_sniffer/ruleset-php-legacy-core.xml
+++ b/build/code_sniffer/ruleset-php-legacy-core.xml
@@ -5,9 +5,7 @@
 
  <rule ref="./ruleset-php-legacy.xml" />
 
- <!-- THe header file MUST contains:
-      - the phpBB copyright: (c) phpBB Limited <https://www.phpbb.com>
-      - the phpBB License: GNU General Public License, version 2 (GPL-2.0) -->
+ <!-- Each file MUST start with a valid header as defined by the Coding Guidelines -->
  <rule ref="./phpbb/Sniffs/Commenting/FileCommentSniff.php" />
 
 </ruleset>