diff --git a/phpBB/phpbb/extension/metadata_manager.php b/phpBB/phpbb/extension/metadata_manager.php
index 348b3c2cdf..ae1af10c1d 100644
--- a/phpBB/phpbb/extension/metadata_manager.php
+++ b/phpBB/phpbb/extension/metadata_manager.php
@@ -214,9 +214,19 @@ class metadata_manager
 			case 'all':
 				$this->validate('display');
 
-				if (!$this->validate_enable())
+				if (!$this->validate_dir())
 				{
-					throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array($name));
+					throw new \phpbb\extension\exception('EXTENSION_DIR_INVALID');
+				}
+
+				if (!$this->validate_require_phpbb())
+				{
+					throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array('soft-require'));
+				}
+
+				if (!$this->validate_require_php())
+				{
+					throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array('require php'));
 				}
 			break;