1 files changed, 1 insertions, 1 deletions
diff --git a/buffer_test.ts b/buffer_test.ts
index 9a71e80a3..1958f8e97 100644
--- a/buffer_test.ts
+++ b/buffer_test.ts
@@ -17,7 +17,7 @@ function init() {
   if (testBytes == null) {
     testBytes = new Uint8Array(N);
     for (let i = 0; i < N; i++) {
-      testBytes[i] = "a".charCodeAt(0) + i % 26;
+      testBytes[i] = "a".charCodeAt(0) + (i % 26);
     }
     const decoder = new TextDecoder();
     testString = decoder.decode(testBytes);