diff --git a/functions/classobj.xml b/functions/classobj.xml
index ca72fd6676..67698198f9 100644
--- a/functions/classobj.xml
+++ b/functions/classobj.xml
@@ -315,6 +315,12 @@ call_user_method ("print_info", $cntry, "\t");
      This function returns the name of the class of which the
      object <parameter>obj</parameter> is an instance.
     </para>
+    <note>
+     <para>
+      <function>get_class</function> returns the class name in
+      lowercase form.
+     </para>
+    </note>
     <simpara>
      See also <function>get_parent_class</function>,
      <function>is_subclass_of</function>