1 files changed, 1 insertions, 1 deletions
diff --git a/io/bufio_test.ts b/io/bufio_test.ts
index 84b6f9142..6433c7a5a 100644
--- a/io/bufio_test.ts
+++ b/io/bufio_test.ts
@@ -35,7 +35,7 @@ async function readBytes(buf: BufReader): Promise<string> {
   let nb = 0;
   while (true) {
     let c = await buf.readByte();
-    if (c < 0) {
+    if (c === EOF) {
       break; // EOF
     }
     b[nb] = c;