diff --git a/phpBB/includes/diff/diff.php b/phpBB/includes/libraries/diff/diff.php
similarity index 100%
rename from phpBB/includes/diff/diff.php
rename to phpBB/includes/libraries/diff/diff.php
diff --git a/phpBB/includes/diff/engine.php b/phpBB/includes/libraries/diff/engine.php
similarity index 100%
rename from phpBB/includes/diff/engine.php
rename to phpBB/includes/libraries/diff/engine.php
diff --git a/phpBB/includes/diff/renderer.php b/phpBB/includes/libraries/diff/renderer.php
similarity index 100%
rename from phpBB/includes/diff/renderer.php
rename to phpBB/includes/libraries/diff/renderer.php