diff --git a/inc/page-header.php b/inc/page-header.php
index ab5461d8..ea87eee5 100644
--- a/inc/page-header.php
+++ b/inc/page-header.php
@@ -27,6 +27,7 @@ function make_help_link($matches)
 }
 
 
+if ( !function_exists('send_page_header') ) {
 function send_page_header() {
   global $session, $c, $main_menu, $related_menu;
 
@@ -79,6 +80,7 @@ EOHDR;
   }
 
 }
+}
 
 send_page_header();