diff --git a/pandora_server/util/pandora_db.pl b/pandora_server/util/pandora_db.pl
index 0981047598..4dfa70a602 100644
--- a/pandora_server/util/pandora_db.pl
+++ b/pandora_server/util/pandora_db.pl
@@ -297,7 +297,9 @@ sub pandora_purgedb ($$) {
 	    
 	    my $buffer = 1000;
 	    my $id_module = $module->{'id_agente_modulo'};
-	    
+
+		db_do ($dbh, 'UPDATE tagente_modulo SET parent_module_id=0 WHERE parent_module_id=?', $id_module);
+
 		log_message ('', ".");
 		
 		while(1) {