diff --git a/phpBB/phpbb/composer/extension_manager.php b/phpBB/phpbb/composer/extension_manager.php
index a1ceb06d91..96250e9dd3 100644
--- a/phpBB/phpbb/composer/extension_manager.php
+++ b/phpBB/phpbb/composer/extension_manager.php
@@ -51,7 +51,7 @@ class extension_manager extends manager
 	/**
 	 * @var bool Purges extensions data when removing them?
 	 */
-	private $purge_on_remove = false;
+	private $purge_on_remove = true;
 
 	/**
 	 * @param installer			$installer			Installer object
diff --git a/phpBB/phpbb/db/migration/data/v320/extensions_composer.php b/phpBB/phpbb/db/migration/data/v320/extensions_composer.php
index 438c412158..8b7065d335 100644
--- a/phpBB/phpbb/db/migration/data/v320/extensions_composer.php
+++ b/phpBB/phpbb/db/migration/data/v320/extensions_composer.php
@@ -23,7 +23,7 @@ class extensions_composer extends \phpbb\db\migration\migration
 			array('config.add', array('exts_composer_json_file', 'composer-ext.json')),
 			array('config.add', array('exts_composer_vendor_dir', 'vendor-ext/')),
 			array('config.add', array('exts_composer_enable_on_install', false)),
-			array('config.add', array('exts_composer_purge_on_remove', false)),
+			array('config.add', array('exts_composer_purge_on_remove', true)),
 			array('module.add', array(
 				'acp',
 				'ACP_EXTENSION_MANAGEMENT',