diff --git a/src/Symfony/Component/Console/Output/OutputInterface.php b/src/Symfony/Component/Console/Output/OutputInterface.php
index f7f30636fe..edffb9ca8e 100644
--- a/src/Symfony/Component/Console/Output/OutputInterface.php
+++ b/src/Symfony/Component/Console/Output/OutputInterface.php
@@ -48,7 +48,7 @@ interface OutputInterface
     /**
      * Writes a message to the output and adds a newline at the end.
      *
-     * @param string|array $messages The message as an array of lines of a single string
+     * @param string|array $messages The message as an array of lines or a single string
      * @param int          $type     The type of output (one of the OUTPUT constants)
      *
      * @throws \InvalidArgumentException When unknown output type is given