diff --git a/cli/tests/testdata/blob_gc_finalization.js b/cli/tests/testdata/blob_gc_finalization.js
index 34c8785138..c721e6b45e 100644
--- a/cli/tests/testdata/blob_gc_finalization.js
+++ b/cli/tests/testdata/blob_gc_finalization.js
@@ -1,6 +1,6 @@
-// This test creates 1024 blobs of 128 MB each. This will only work if the blobs
+// This test creates 128 blobs of 128 MB each. This will only work if the blobs
 // and their backing data is GCed as expected.
-for (let i = 0; i < 1024; i++) {
+for (let i = 0; i < 128; i++) {
   // Create a 128MB byte array, and then a blob from it.
   const buf = new Uint8Array(128 * 1024 * 1024);
   new Blob([buf]);