diff --git a/package.json b/package.json
index e9497a45..0b81de40 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
         "build:watch": "lerna run --scope @yume-chan/adb-backend-web --stream build:watch",
         "build:demo": "lerna run --scope demo --stream build",
         "start:demo": "lerna run --scope demo --stream start",
-        "test": "lerna run --stream test"
+        "test": "lerna run --stream --no-bail coverage"
     },
     "devDependencies": {
         "lerna": "3.22.1"
diff --git a/packages/demo/src/components/logger.tsx b/packages/demo/src/components/logger.tsx
index 9dac88f8..cc9e215a 100644
--- a/packages/demo/src/components/logger.tsx
+++ b/packages/demo/src/components/logger.tsx
@@ -1,5 +1,5 @@
 import { IconButton, IListProps, List, mergeStyles, mergeStyleSets, Stack } from '@fluentui/react';
-import { AdbLogger, AdbPacket } from '@yume-chan/adb';
+import { AdbLogger, AdbPacket, AdbPacketInit } from '@yume-chan/adb';
 import { decodeUtf8 } from '@yume-chan/adb-backend-web';
 import { DisposableList, EventEmitter } from '@yume-chan/event';
 import React, { createContext, useCallback, useContext, useEffect, useLayoutEffect, useMemo, useRef, useState } from 'react';
@@ -29,7 +29,7 @@ export class AdbEventLogger {
     private readonly _incomingPacketEvent = new EventEmitter<AdbPacket>();
     public get onIncomingPacket() { return this._incomingPacketEvent.event; }
 
-    private readonly _outgoingPacketEvent = new EventEmitter<AdbPacket>();
+    private readonly _outgoingPacketEvent = new EventEmitter<AdbPacketInit>();
     public get onOutgoingPacket() { return this._outgoingPacketEvent.event; }
 
     public constructor() {
@@ -44,7 +44,7 @@ export class AdbEventLogger {
     }
 }
 
-function serializePacket(packet: AdbPacket) {
+function serializePacket(packet: AdbPacketInit) {
     const command = decodeUtf8(new Uint32Array([packet.command]).buffer);
 
     const parts = [