2 files changed, 4 insertions, 0 deletions
diff --git a/phpBB/install/database_update.php b/phpBB/install/database_update.php
index 843e8c2f23..a1c8fe1ef9 100644
--- a/phpBB/install/database_update.php
+++ b/phpBB/install/database_update.php
@@ -82,6 +82,8 @@ if (!empty($load_extensions) && function_exists('dl'))
 	}
 }
 
+require($phpbb_root_path . 'vendor/.composer/autoload.php');
+
 // Include files
 require($phpbb_root_path . 'includes/class_loader.' . $phpEx);
 require($phpbb_root_path . 'includes/session.' . $phpEx);
diff --git a/phpBB/install/index.php b/phpBB/install/index.php
index 9d003ba6ab..7e150c2519 100644
--- a/phpBB/install/index.php
+++ b/phpBB/install/index.php
@@ -69,6 +69,8 @@ else
 }
 @ini_set('memory_limit', $mem_limit);
 
+require($phpbb_root_path . 'vendor/.composer/autoload.php');
+
 // Include essential scripts
 require($phpbb_root_path . 'includes/class_loader.' . $phpEx);
 require($phpbb_root_path . 'includes/functions.' . $phpEx);