diff --git a/src/controllers/UserWebSocketController.ts b/src/controllers/UserWebSocketController.ts
index 4ca57e4..c34322b 100644
--- a/src/controllers/UserWebSocketController.ts
+++ b/src/controllers/UserWebSocketController.ts
@@ -10,6 +10,7 @@ import { time } from '../utils/DateUtils';
 import { randomStr } from '../utils/CryptUtils';
 import { EventsHelper } from '../helpers/EventsHelper';
 import { NotificationsHelper } from '../helpers/NotificationsHelper';
+import { ConversationsHelper } from '../helpers/ConversationsHelper';
 
 interface PendingRequests {
 	time: number,
@@ -208,10 +209,33 @@ export class UserWebSocketController {
 		}
 
 	}
+
+	/**
+	 * Send upated number of unread conversations count
+	 * 
+	 * @param usersID Target users ID
+	 */
+	public static async SendNewUnreadConversationsCount(usersID: number[]) {
+		for(const userID of usersID) {
+
+			if(!this.IsConnected(userID))
+				continue;
+			
+			// Notify user
+			this.Send(userID, "", {
+				title: "number_unread_conversations",
+				id: "",
+				data: await ConversationsHelper.CountUnreadForUser(userID)
+			});
+		}
+	}
 }
 
 // When user sign out
 EventsHelper.Listen("destroyed_login_tokens", (e) => UserWebSocketController.CloseClientSockets(e.client.id, e.userID));
 
 // When we get a new number of notifications
-EventsHelper.Listen("updated_number_notifications", async (e) => await UserWebSocketController.SendNewNotificationsNumber(e.usersID));
\ No newline at end of file
+EventsHelper.Listen("updated_number_notifications", async (e) => await UserWebSocketController.SendNewNotificationsNumber(e.usersID));
+
+// When we get a new number of unread conversations
+EventsHelper.Listen("updated_number_unread_conversations", async (e) => await UserWebSocketController.SendNewUnreadConversationsCount(e.usersID));
\ No newline at end of file
diff --git a/src/helpers/ConversationsHelper.ts b/src/helpers/ConversationsHelper.ts
index 5eaea03..f320423 100644
--- a/src/helpers/ConversationsHelper.ts
+++ b/src/helpers/ConversationsHelper.ts
@@ -4,6 +4,7 @@ import { time } from "../utils/DateUtils";
 import { ConversationMessage, BaseConversationMessage } from "../entities/ConversationMessage";
 import { UnreadConversation } from "../entities/UnreadConversation";
 import { existsSync, unlinkSync } from "fs";
+import { EventsHelper } from "./EventsHelper";
 
 /**
  * Conversations helper
@@ -407,7 +408,7 @@ export class ConversationsHelper {
 	 * @param userID Target user ID
 	 */
 	public static async MarkUserSeen(convID: number, userID: number) {
-		await DatabaseHelper.UpdateRows({
+		const count = await DatabaseHelper.UpdateRows({
 			table: USERS_TABLE,
 			where: {
 				conv_id: convID,
@@ -417,6 +418,12 @@ export class ConversationsHelper {
 				saw_last_message: 1
 			}
 		});
+
+		// Send an event if required
+		if(count > 0)
+			await EventsHelper.Emit("updated_number_unread_conversations", {
+				usersID: [userID]
+			})
 	}
 
 	/**
diff --git a/src/helpers/EventsHelper.ts b/src/helpers/EventsHelper.ts
index de0d3fe..965d61b 100644
--- a/src/helpers/EventsHelper.ts
+++ b/src/helpers/EventsHelper.ts
@@ -18,12 +18,18 @@ export interface UpdatedNotificationsNumberEvent {
 	usersID: number[]
 }
 
+// When some users have an updated number of unread conversations
+export interface UpdateNumberUnreadConversations {
+	usersID: number[]
+}
+
 /**
  * Global map of all possible events
  */
 export interface EventsMap {
 	"destroyed_login_tokens": DestroyedLoginTokensEvent,
 	"updated_number_notifications": UpdatedNotificationsNumberEvent,
+	"updated_number_unread_conversations": UpdateNumberUnreadConversations
 }
 
 export class EventsHelper {