diff --git a/lib/mysql.js b/lib/mysql.js
index 6d3d219..2a48299 100644
--- a/lib/mysql.js
+++ b/lib/mysql.js
@@ -306,6 +306,7 @@ MySQL.prototype.toDatabase = function (prop, val) {
         return this.toDatabase(prop, val);
       }
     }
+    return this.toDatabase(prop, val);
   }
   if (!prop) {
     return this.client.escape(val);