diff --git a/src/Socket/chats.ts b/src/Socket/chats.ts
index e37753c..e17a435 100644
--- a/src/Socket/chats.ts
+++ b/src/Socket/chats.ts
@@ -41,6 +41,9 @@ export const makeChatsSocket = (config: SocketConfig) => {
 					'doing initial app state sync'
 				)
 				await resyncMainAppState(recvChats)
+
+				const accountSyncCounter = (authState.creds.accountSyncCounter || 0) + 1
+				ev.emit('creds.update', { accountSyncCounter })
 			} else {
 				logger.warn('connection closed before app state sync')
 			}
diff --git a/src/Types/Auth.ts b/src/Types/Auth.ts
index 67373ca..2ccb9db 100644
--- a/src/Types/Auth.ts
+++ b/src/Types/Auth.ts
@@ -48,6 +48,8 @@ export type AuthenticationCreds = SignalCreds & {
     platform?: string
 
     processedHistoryMessages: MinimalMessage[]
+    /** number of times history & app state has been synced */
+    accountSyncCounter: number
     accountSettings: AccountSettings
 }
 
diff --git a/src/Types/Chat.ts b/src/Types/Chat.ts
index 71e1a8e..c37da77 100644
--- a/src/Types/Chat.ts
+++ b/src/Types/Chat.ts
@@ -51,31 +51,27 @@ export type ChatModification =
     {
         archive: boolean
         lastMessages: LastMessageList
-    } |
-    {
-        pushNameSetting: string
-    } |
-    {
-        pin: boolean
-    } |
-    {
+    }
+    | { pushNameSetting: string }
+    | { pin: boolean }
+    | {
         /** mute for duration, or provide timestamp of mute to remove*/
         mute: number | null
-    } |
-    {
+    }
+    | {
         clear: 'all' | { messages: {id: string, fromMe?: boolean, timestamp: number}[] }
-    } |
-    {
+    }
+    | {
         star: {
             messages: { id: string, fromMe?: boolean }[],
             star: boolean
         }
-    } |
-    {
+    }
+    | {
         markRead: boolean
         lastMessages: LastMessageList
-    } |
-    { delete: true, lastMessages: LastMessageList }
+    }
+    | { delete: true, lastMessages: LastMessageList }
 
 export type InitialReceivedChatsState = {
     [jid: string]: { lastMsgRecvTimestamp: number }
diff --git a/src/Types/index.ts b/src/Types/index.ts
index 232ae4a..e35c67c 100644
--- a/src/Types/index.ts
+++ b/src/Types/index.ts
@@ -85,5 +85,4 @@ export type WABusinessProfile = {
     address?: string
 }
 
-
 export type CurveKeyPair = { private: Uint8Array; public: Uint8Array }
\ No newline at end of file
diff --git a/src/Utils/auth-utils.ts b/src/Utils/auth-utils.ts
index 31d0455..17f09c2 100644
--- a/src/Utils/auth-utils.ts
+++ b/src/Utils/auth-utils.ts
@@ -128,6 +128,7 @@ export const initAuthCreds = (): AuthenticationCreds => {
 		processedHistoryMessages: [],
 		nextPreKeyId: 1,
 		firstUnuploadedPreKeyId: 1,
+		accountSyncCounter: 0,
 		accountSettings: {
 			unarchiveChats: false
 		}