Fixed small typeo
diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index b7edf71..233a901 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -252,7 +252,7 @@
 	{
 		if ( ! $migrations = $this->find_migrations())
 		{
-			$this->_error_string = $this->line->lang('migration_none_found');
+			$this->_error_string = $this->lang->line('migration_none_found');
 			return false;
 		}