diff --git a/MysqliDb.php b/MysqliDb.php
index 75d981f6..6a119b6b 100644
--- a/MysqliDb.php
+++ b/MysqliDb.php
@@ -428,7 +428,11 @@ public function mysqli()
      */
     public static function getInstance()
     {
-        return self::$_instance;
+        if(isset(self::$_instance)) {
+            return self::$_instance;
+        } else {
+            return new MysqliDb();
+        }
     }
 
     /**