diff --git a/phpBB/install/startup.php b/phpBB/install/startup.php
index 007b20da35..02d5038836 100644
--- a/phpBB/install/startup.php
+++ b/phpBB/install/startup.php
@@ -49,13 +49,19 @@ function phpbb_include_updated($path, $phpbb_root_path, $optional = false)
 
 function installer_msg_handler($errno, $msg_text, $errfile, $errline)
 {
-	global $phpbb_installer_container;
+	global $phpbb_installer_container, $msg_long_text;
 
 	if (error_reporting() == 0)
 	{
 		return true;
 	}
 
+	// If the message handler is stripping text, fallback to the long version if available
+	if (isset($msg_long_text) && $msg_long_text && !$msg_text)
+	{
+		$msg_text = $msg_long_text;
+	}
+
 	switch ($errno)
 	{
 		case E_NOTICE: