diff --git a/lib/internal/http2/compat.js b/lib/internal/http2/compat.js
index 2d6ed47d74e29f..96895cae0bd70a 100644
--- a/lib/internal/http2/compat.js
+++ b/lib/internal/http2/compat.js
@@ -522,7 +522,7 @@ class Http2ServerResponse extends Stream {
   addTrailers(headers) {
     const keys = Object.keys(headers);
     let key = '';
-    for (var i = 0; i < keys.length; i++) {
+    for (let i = 0; i < keys.length; i++) {
       key = keys[i];
       this.setTrailer(key, headers[key]);
     }
@@ -606,7 +606,7 @@ class Http2ServerResponse extends Stream {
     if (headers === undefined && typeof statusMessage === 'object')
       headers = statusMessage;
 
-    var i;
+    let i;
     if (Array.isArray(headers)) {
       for (i = 0; i < headers.length; i++) {
         const header = headers[i];