diff --git a/test/parallel/test-stream-transform-final-sync.js b/test/parallel/test-stream-transform-final-sync.js
index 666c1dce9996d1..1942bee1a01e8a 100644
--- a/test/parallel/test-stream-transform-final-sync.js
+++ b/test/parallel/test-stream-transform-final-sync.js
@@ -7,7 +7,7 @@ let state = 0;
 
 /*
 What you do
-var stream = new stream.Transform({
+const stream = new stream.Transform({
   transform: function transformCallback(chunk, _, next) {
     // part 1
     this.push(chunk);
diff --git a/test/parallel/test-stream-transform-final.js b/test/parallel/test-stream-transform-final.js
index 3d6c4563c6e194..53b81cfea224e4 100644
--- a/test/parallel/test-stream-transform-final.js
+++ b/test/parallel/test-stream-transform-final.js
@@ -7,7 +7,7 @@ let state = 0;
 
 /*
 What you do
-var stream = new stream.Transform({
+const stream = new stream.Transform({
   transform: function transformCallback(chunk, _, next) {
     // part 1
     this.push(chunk);