diff --git a/lib/internal/test_runner/tests_stream.js b/lib/internal/test_runner/tests_stream.js
index 1b86aeeaff2800..83b2a903218df1 100644
--- a/lib/internal/test_runner/tests_stream.js
+++ b/lib/internal/test_runner/tests_stream.js
@@ -2,6 +2,7 @@
 const {
   ArrayPrototypePush,
   ArrayPrototypeShift,
+  NumberMAX_SAFE_INTEGER,
   Symbol,
 } = primordials;
 const Readable = require('internal/streams/readable');
@@ -12,7 +13,11 @@ class TestsStream extends Readable {
   #canPush;
 
   constructor() {
-    super({ __proto__: null, objectMode: true });
+    super({
+      __proto__: null,
+      objectMode: true,
+      highWaterMark: NumberMAX_SAFE_INTEGER,
+    });
     this.#buffer = [];
     this.#canPush = true;
   }