diff --git a/pandora_console/ChangeLog b/pandora_console/ChangeLog
index 503e3d6267..875dd22684 100644
--- a/pandora_console/ChangeLog
+++ b/pandora_console/ChangeLog
@@ -1,3 +1,10 @@
+2013-04-24 Miguel de Dios <miguel.dedios@artica.es>
+
+	* operation/agentes/networkmap.topology.php: fixed the PHP
+	notice in the enterprise Dashboard.
+	
+	Fixes: #3611685
+
 2013-04-24 Miguel de Dios <miguel.dedios@artica.es>
 
 	* operation/agentes/networkmap.php,
diff --git a/pandora_console/operation/agentes/networkmap.topology.php b/pandora_console/operation/agentes/networkmap.topology.php
index 96623da519..97d1be14b4 100644
--- a/pandora_console/operation/agentes/networkmap.topology.php
+++ b/pandora_console/operation/agentes/networkmap.topology.php
@@ -31,6 +31,10 @@ require_once ('include/functions_networkmap.php');
 // Set filter
 $filter = networkmap_get_filter ($layout);
 
+if (!isset($text_filter)) {
+	$text_filter = '';
+}
+
 // Generate dot file
 $graph = networkmap_generate_dot(__('Pandora FMS'), $group, $simple,
 	$font_size, $layout, $nooverlap, $zoom, $ranksep, $center, $regen,