diff --git a/io.ts b/io.ts
index 41676e5d..97c43792 100644
--- a/io.ts
+++ b/io.ts
@@ -42,7 +42,7 @@ export function createRequest(
 export async function sendCommand(
   writer: BufWriter,
   reader: BufReader,
-  command,
+  command: string,
   ...args
 ): Promise<RedisRawReply> {
   const msg = createRequest(command, ...args);
diff --git a/pubsub.ts b/pubsub.ts
index 887457ba..d720231f 100644
--- a/pubsub.ts
+++ b/pubsub.ts
@@ -1,5 +1,5 @@
 import { BufReader, BufWriter } from "https://deno.land/std@v0.7.0/io/bufio.ts";
-import { readArrayReply, sendCommand } from "./io.ts";
+import { createRequest, readArrayReply, sendCommand } from "./io.ts";
 
 export type RedisSubscription = {
   readonly isClosed: boolean;
@@ -77,9 +77,7 @@ class RedisSubscriptionImpl implements RedisSubscription {
 
   async close() {
     try {
-      console.log("unsubscribing");
       await this.unsubscribe(...Object.keys(this.channels));
-      console.log("unsubscribing done");
       await this.punsubscribe(...Object.keys(this.patterns));
     } finally {
       this._isClosed = true;
diff --git a/pubsub_test.ts b/pubsub_test.ts
index 734c18dc..5d207c9a 100644
--- a/pubsub_test.ts
+++ b/pubsub_test.ts
@@ -26,16 +26,17 @@ test(async function testSubscribe2() {
   const pub = await connect(addr);
   const sub = await redis.subscribe("subsc2");
   let message: RedisPubSubMessage;
-  (async function() {
+  const p = (async function() {
     const it = sub.receive();
     message = (await it.next()).value;
   })();
   await pub.publish("subsc2", "wayway");
-  await sub.close();
+  await p;
   assertEquals(message, {
     channel: "subsc2",
     message: "wayway"
   });
+  await sub.close();
   const a = await redis.get("aaa");
   assertEquals(a, void 0);
   pub.close();
@@ -48,14 +49,14 @@ test(async function testPsubscribe() {
   const sub = await redis.psubscribe("ps*");
   let message1;
   let message2;
-  (async function() {
-    const it = sub.receive();
+  const it = sub.receive();
+  const p = (async function() {
     message1 = (await it.next()).value;
     message2 = (await it.next()).value;
   })();
   await pub.publish("psub", "wayway");
   await pub.publish("psubs", "heyhey");
-  await sub.close();
+  await p;
   assertEquals(message1, {
     pattern: "ps*",
     channel: "psub",
@@ -66,6 +67,7 @@ test(async function testPsubscribe() {
     channel: "psubs",
     message: "heyhey"
   });
+  await sub.close();
   pub.close();
   redis.close();
 });