diff --git a/src/Socket/messages-recv.ts b/src/Socket/messages-recv.ts
index af82533..5686c4b 100644
--- a/src/Socket/messages-recv.ts
+++ b/src/Socket/messages-recv.ts
@@ -314,6 +314,22 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 				}
 			}
 
+			break
+		case 'account_sync':
+			if(child.tag === 'disappearing_mode') {
+				const newDuration = +child.attrs.duration
+				const timestamp = +child.attrs.t
+				ev.emit('creds.update', {
+					accountSettings: {
+						...authState.creds.accountSettings,
+						defaultDisappearingMode: {
+							ephemeralExpiration: newDuration,
+							ephemeralSettingTimestamp: timestamp,
+						},
+					}
+				})
+			}
+
 			break
 		}
 
diff --git a/src/Types/Auth.ts b/src/Types/Auth.ts
index 1b78bb0..1010da6 100644
--- a/src/Types/Auth.ts
+++ b/src/Types/Auth.ts
@@ -31,6 +31,8 @@ export type SignalCreds = {
 export type AccountSettings = {
     /** unarchive chats when a new message is received */
     unarchiveChats: boolean
+    /** the default mode to start new conversations with */
+    defaultDisappearingMode?: Pick<proto.IConversation, 'ephemeralExpiration' | 'ephemeralSettingTimestamp'>
 }
 
 export type AuthenticationCreds = SignalCreds & {