diff --git a/reference/strings/functions/stristr.xml b/reference/strings/functions/stristr.xml
index 6ec902b650..3209907caf 100644
--- a/reference/strings/functions/stristr.xml
+++ b/reference/strings/functions/stristr.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>string</type><methodname>stristr</methodname>
+   <type>mixed</type><methodname>stristr</methodname>
    <methodparam><type>string</type><parameter>haystack</parameter></methodparam>
    <methodparam><type>mixed</type><parameter>needle</parameter></methodparam>
    <methodparam choice="opt"><type>bool</type><parameter>before_needle</parameter><initializer>false</initializer></methodparam>