diff --git a/reference/filesystem/functions/fseek.xml b/reference/filesystem/functions/fseek.xml
index 8e002eb15a..160bc5dccc 100644
--- a/reference/filesystem/functions/fseek.xml
+++ b/reference/filesystem/functions/fseek.xml
@@ -74,7 +74,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Upon success, returns 0; otherwise, returns -1.
+   Upon success, returns 0&return.falseforfailure;.
   </para>
  </refsect1>