diff --git a/functions/mcal.xml b/functions/mcal.xml
index 69bfbc7974..c7cbe8d0cc 100644
--- a/functions/mcal.xml
+++ b/functions/mcal.xml
@@ -1033,6 +1033,32 @@
    </refsect1>
   </refentry>
 
+  <refentry id="function.mcal-event-add-attribute">
+   <refnamediv>
+    <refname>mcal_event_add_attribute</refname>
+    <refpurpose>
+     Adds an attribute and a value to the streams global event structure
+    </refpurpose>
+   </refnamediv>
+   <refsect1>
+    <title>Description</title>
+    <funcsynopsis>
+     <funcprototype>
+      <funcdef>void 
+       <function>mcal_event_add_attribute</function>
+      </funcdef>
+      <paramdef>int <parameter>stream</parameter></paramdef>
+      <paramdef>string <parameter>attribute</parameter></paramdef>
+      <paramdef>string <parameter>value</parameter></paramdef>
+     </funcprototype>
+    </funcsynopsis>
+    <para>  
+     <function>mcal_event_add_attribute</function> adds an attribute
+     to the stream's global event structure with the value given by
+     "value" .</para>
+   </refsect1>
+  </refentry>
+
 </reference>
 
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