1 files changed, 3 insertions, 1 deletions
diff --git a/std/http/_mock_conn.ts b/std/http/_mock_conn.ts
index b2abb301a..8f3396dbd 100644
--- a/std/http/_mock_conn.ts
+++ b/std/http/_mock_conn.ts
@@ -14,7 +14,9 @@ export function mockConn(base: Partial<Deno.Conn> = {}): Deno.Conn {
       port: 0,
     },
     rid: -1,
-    closeWrite: (): void => {},
+    closeWrite: (): Promise<void> => {
+      return Promise.resolve();
+    },
     read: (): Promise<number | null> => {
       return Promise.resolve(0);
     },