1 files changed, 1 insertions, 1 deletions
diff --git a/bufio.ts b/bufio.ts
index 819c610f9..a1f673653 100644
--- a/bufio.ts
+++ b/bufio.ts
@@ -425,7 +425,7 @@ export class BufWriter implements Writer {
       } else {
         n = copyBytes(this.buf, p, this.n);
         this.n += n;
-        this.flush();
+        await this.flush();
       }
       nn += n;
       p = p.subarray(n);