diff --git a/pandora_console/ChangeLog b/pandora_console/ChangeLog
index 0425912b22..20559c7c2b 100644
--- a/pandora_console/ChangeLog
+++ b/pandora_console/ChangeLog
@@ -1,3 +1,8 @@
+2013-12-05  Dario Rodriguez <dario@artica.es>
+
+	* mobile/operation/module_graph.php: Fixed a problem with
+	module graph filter regarding to event and period filter.
+
 2013-12-05  Dario Rodriguez <dario@artica.es>
 
 	* mobile/operation/modules.php: Added default value for tag
diff --git a/pandora_console/mobile/operation/module_graph.php b/pandora_console/mobile/operation/module_graph.php
index d66f99e754..4cff98e77c 100644
--- a/pandora_console/mobile/operation/module_graph.php
+++ b/pandora_console/mobile/operation/module_graph.php
@@ -56,7 +56,8 @@ class ModuleGraph {
 		$this->graph_type = return_graphtype($this->module["id_tipo_modulo"]);
 		
 		$period_hours = $system->getRequest('period_hours', false);
-		if ($period_hours === false) {
+		
+		if ($period_hours == false) {
 			$this->period = SECONDS_1DAY;
 		}
 		else {
@@ -95,6 +96,9 @@ class ModuleGraph {
 	}
 	
 	public function ajax($parameter2 = false) {
+		
+		global $config;
+		
 		$system = System::getInstance();
 		
 		if (!$this->correct_acl) {
@@ -452,4 +456,4 @@ class ModuleGraph {
 	}
 	/*
 	 */
-}
\ No newline at end of file
+}