diff --git a/html/includes/graphs/bgp/prefixes.inc.php b/html/includes/graphs/bgp/prefixes.inc.php
index bf70dd5bb..56aca061a 100644
--- a/html/includes/graphs/bgp/prefixes.inc.php
+++ b/html/includes/graphs/bgp/prefixes.inc.php
@@ -15,4 +15,6 @@ $graph_max = 1;
 
 $unit_text = "Prefixes";
 
+include("includes/graphs/generic_simplex.inc.php");
+
 ?>