diff --git a/src/addons/mod/chat/pages/chat/chat.ts b/src/addons/mod/chat/pages/chat/chat.ts
index dd0add80e..2c0d46706 100644
--- a/src/addons/mod/chat/pages/chat/chat.ts
+++ b/src/addons/mod/chat/pages/chat/chat.ts
@@ -166,7 +166,7 @@ export class AddonModChatChatPage implements OnInit, OnDestroy, CanLeave {
 
             const message = this.messages[index];
 
-            if (message.beep && message.beep != String(this.currentUserId)) {
+            if (message.beep && message.beep !== this.currentUserId) {
                 this.loadMessageBeepWho(message);
             }
         }
@@ -212,11 +212,11 @@ export class AddonModChatChatPage implements OnInit, OnDestroy, CanLeave {
      * @param id User Id before parsing.
      * @returns User fullname.
      */
-    protected async getUserFullname(id: string): Promise<string> {
-        const idNumber = parseInt(id, 10);
+    protected async getUserFullname(id: string | number): Promise<string> {
+        const idNumber = Number(id);
 
         if (isNaN(idNumber)) {
-            return id;
+            return String(id);
         }
 
         const user = this.users.find((user) => user.id == idNumber);
@@ -235,10 +235,10 @@ export class AddonModChatChatPage implements OnInit, OnDestroy, CanLeave {
                 return user.fullname;
             }
 
-            return id;
+            return String(id);
         } catch {
             // Ignore errors.
-            return id;
+            return String(id);
         }
     }
 
diff --git a/src/addons/mod/chat/pages/session-messages/session-messages.ts b/src/addons/mod/chat/pages/session-messages/session-messages.ts
index e3143eec7..682bb738e 100644
--- a/src/addons/mod/chat/pages/session-messages/session-messages.ts
+++ b/src/addons/mod/chat/pages/session-messages/session-messages.ts
@@ -112,7 +112,7 @@ export class AddonModChatSessionMessagesPage implements OnInit {
 
                 const message = this.messages[index];
 
-                if (message.beep && message.beep != String(this.currentUserId)) {
+                if (message.beep && message.beep !== this.currentUserId) {
                     this.loadMessageBeepWho(message);
                 }
             }
@@ -135,11 +135,11 @@ export class AddonModChatSessionMessagesPage implements OnInit {
      * @param id User Id before parsing.
      * @returns User fullname.
      */
-    protected async getUserFullname(id: string): Promise<string> {
-        const idNumber = parseInt(id, 10);
+    protected async getUserFullname(id: string | number): Promise<string> {
+        const idNumber = Number(id);
 
         if (isNaN(idNumber)) {
-            return id;
+            return String(id);
         }
 
         try {
@@ -148,7 +148,7 @@ export class AddonModChatSessionMessagesPage implements OnInit {
             return user.fullname;
         } catch {
             // Error getting profile.
-            return id;
+            return String(id);
         }
     }
 
diff --git a/src/addons/mod/chat/services/chat-helper.ts b/src/addons/mod/chat/services/chat-helper.ts
index 49f466243..2380408df 100644
--- a/src/addons/mod/chat/services/chat-helper.ts
+++ b/src/addons/mod/chat/services/chat-helper.ts
@@ -54,6 +54,9 @@ export class AddonModChatHelperProvider {
 
         formattedMessage.showDate = this.showDate(message, prevMessage);
         formattedMessage.beep = (message.message.substring(0, 5) == 'beep ' && message.message.substring(5).trim()) || undefined;
+        if (formattedMessage.beep && !isNaN(Number(formattedMessage.beep))) {
+            formattedMessage.beep = Number(formattedMessage.beep);
+        }
 
         formattedMessage.special = !!formattedMessage.beep || (<AddonModChatSessionMessage> message).issystem ||
             (<AddonModChatMessage> message).system;
@@ -133,7 +136,7 @@ export const AddonModChatHelper = makeSingleton(AddonModChatHelperProvider);
  */
 type AddonModChatInfoForView = {
     showDate?: boolean; // If date should be displayed before the message.
-    beep?: string; // User id of the beeped user or 'all'.
+    beep?: string | number; // User id of the beeped user or 'all'.
     special?: boolean; // True if is an special message (system, beep or command).
     showUserData?: boolean; // If user data should be displayed.
     showTail?: boolean; // If tail should be displayed (decoration).