diff --git a/lib/Connection.js b/lib/Connection.js
index 94677d8e3..7d10aba5a 100644
--- a/lib/Connection.js
+++ b/lib/Connection.js
@@ -105,7 +105,6 @@ Connection.prototype.query = function(sql, values, cb) {
   }
 
   query.sql = this.format(query.sql, query.values || []);
-  delete query.values;
 
   return this._protocol._enqueue(query);
 };