diff --git a/pandora_server/ChangeLog b/pandora_server/ChangeLog
index 92dfbc2c81..aad5027a3c 100644
--- a/pandora_server/ChangeLog
+++ b/pandora_server/ChangeLog
@@ -1,3 +1,7 @@
+2009-12-21  Ramon Novoa  <rnovoa@artica.es>
+
+	* lib/PandoraFMS/Core.pm: Fixed agent check in logger call.
+
 2009-12-21  Sancho Lerena <slerena@artica.es>
 
 	* util/tentacle_served: Fixed call to get_pid, using a width of 300 cols.
diff --git a/pandora_server/lib/PandoraFMS/Core.pm b/pandora_server/lib/PandoraFMS/Core.pm
index c6b141405a..b6f252d09b 100644
--- a/pandora_server/lib/PandoraFMS/Core.pm
+++ b/pandora_server/lib/PandoraFMS/Core.pm
@@ -527,7 +527,7 @@ sub pandora_process_module ($$$$$$$$$) {
 	my ($pa_config, $data, $agent, $module, $module_type,
 		$timestamp, $utimestamp, $server_id, $dbh) = @_;
 
-	logger($pa_config, "Processing module '" . $module->{'nombre'} . "' for agent " . (defined ($agent) ? "'" . $agent->{'nombre'} . "'" : 'ID ' . $module->{'id_agente'}) . ".", 10);
+	logger($pa_config, "Processing module '" . $module->{'nombre'} . "' for agent " . (defined ($agent) && $agent ne '' ? "'" . $agent->{'nombre'} . "'" : 'ID ' . $module->{'id_agente'}) . ".", 10);
 
 	# Get module type
 	if (! defined ($module_type) || $module_type eq '') {