diff --git a/reference/spl/splfileobject/tostring.xml b/reference/spl/splfileobject/tostring.xml
index 320b9a3826..688bc588bd 100644
--- a/reference/spl/splfileobject/tostring.xml
+++ b/reference/spl/splfileobject/tostring.xml
@@ -10,7 +10,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <modifier>public</modifier> <type>void</type><methodname>SplFileObject::__toString</methodname>
+   <modifier>public</modifier> <type>string|array</type><methodname>SplFileObject::__toString</methodname>
    <void />
   </methodsynopsis>
   <simpara>