diff --git a/language/predefined/variables/post.xml b/language/predefined/variables/post.xml
index eeb60ce1b3..092020f2ec 100644
--- a/language/predefined/variables/post.xml
+++ b/language/predefined/variables/post.xml
@@ -12,7 +12,8 @@
   &reftitle.description;
   <para>
    An associative array of variables passed to the current script
-   via the HTTP POST method. 
+   via the HTTP POST method when using <literal>application/x-www-form-urlencoded</literal>
+   or <literal>multipart/form-data</literal> as the HTTP Content-Type in the request.
   </para>
 
   <simpara>