diff --git a/packages/status-communities/src/chat.ts b/packages/status-communities/src/chat.ts
index f0682dd..dbef23a 100644
--- a/packages/status-communities/src/chat.ts
+++ b/packages/status-communities/src/chat.ts
@@ -9,7 +9,7 @@ export class Chat {
     this.id = id;
   }
 
-  public createMessage(text: string) {
+  private createMessage(text: string) {
     const { timestamp, clock } = this.nextClockAndTimestamp();
 
     return ChatMessage.createMessage(clock, timestamp, text, this.id);
@@ -33,7 +33,7 @@ export class Chat {
       this.lastMessage = message;
     }
 
-    if (this.lastClockValue < message.clock) {
+    if (!this.lastClockValue || this.lastClockValue < message.clock) {
       this.lastClockValue = message.clock;
     }
   }
diff --git a/packages/status-communities/src/chat_message.ts b/packages/status-communities/src/chat_message.ts
index c6715d1..a8c950a 100644
--- a/packages/status-communities/src/chat_message.ts
+++ b/packages/status-communities/src/chat_message.ts
@@ -1,10 +1,5 @@
 import * as proto from "./proto/communities/v2/chat_message";
-import {
-  AudioMessage,
-  ChatMessage_ContentType,
-  ImageMessage,
-  StickerMessage,
-} from "./proto/communities/v2/chat_message";
+import { ChatMessage_ContentType } from "./proto/communities/v2/chat_message";
 import { MessageType } from "./proto/communities/v2/enums";
 
 export class ChatMessage {
diff --git a/packages/status-communities/tsconfig.json b/packages/status-communities/tsconfig.json
index 5ae237f..281d2ca 100644
--- a/packages/status-communities/tsconfig.json
+++ b/packages/status-communities/tsconfig.json
@@ -38,7 +38,6 @@
     "skipLibCheck": true,
 
     "lib": ["es2017", "dom"],
-    "types": ["node", "mocha"],
     "typeRoots": ["node_modules/@types", "src/types"]
   },
   "include": ["src/**/*.ts"],