diff --git a/lib/connection/statement.js b/lib/connection/statement.js
index e73652483..d70fc085b 100644
--- a/lib/connection/statement.js
+++ b/lib/connection/statement.js
@@ -1255,7 +1255,7 @@ function sendRequestPreExec(statementContext, onResultAvailable) {
     true);
 }
 
-this.sendRequest = function (statementContext, onResultAvailable) {
+const sendRequest = function (statementContext, onResultAvailable) {
   // get the request headers
   const headers = statementContext.resultRequestHeaders;