diff --git a/airtime_mvc/application/common/Database.php b/airtime_mvc/application/common/Database.php
index 9977278c0..10ca59b09 100644
--- a/airtime_mvc/application/common/Database.php
+++ b/airtime_mvc/application/common/Database.php
@@ -1,6 +1,6 @@
 <?php
 class Application_Common_Database{
-    public static function prepareAndExecute($sql, $paramValueMap, $type='all'){
+    public static function prepareAndExecute($sql, array $paramValueMap, $type='all'){
         $con = Propel::getConnection();
         $stmt = $con->prepare($sql);
         foreach ($paramValueMap as $param => $v) {
@@ -21,4 +21,4 @@ class Application_Common_Database{
         }
         return $rows;
     }
-}
\ No newline at end of file
+}