diff --git a/[core]/esx_multicharacter/server/modules/multicharacter.lua b/[core]/esx_multicharacter/server/modules/multicharacter.lua
index ac4005b8..91d8d839 100644
--- a/[core]/esx_multicharacter/server/modules/multicharacter.lua
+++ b/[core]/esx_multicharacter/server/modules/multicharacter.lua
@@ -70,7 +70,7 @@ function Multicharacter:CharacterChosen(source, charid, isNew)
     else
         SetPlayerRoutingBucket(source, 0)
         if not ESX.GetConfig().EnableDebug then
-            local identifier = ("%s%s:%s"):format(Server.prefix, charid, Server:GetIdentifier(source))
+            local identifier = ("%s%s:%s"):format(Server.prefix, charid, ESX.GetIdentifier(source))
 
             if ESX.GetPlayerFromIdentifier(identifier) then
                 DropPlayer(source, "[ESX Multicharacter] Your identifier " .. identifier .. " is already on the server!")
@@ -80,7 +80,7 @@ function Multicharacter:CharacterChosen(source, charid, isNew)
 
         local charIdentifier = ("%s%s"):format(Server.prefix, charid)
         TriggerEvent("esx:onPlayerJoined", source, charIdentifier)
-        ESX.Players[Server:GetIdentifier(source)] = charIdentifier
+        ESX.Players[ESX.GetIdentifier(source)] = charIdentifier
     end
 end
 
@@ -88,7 +88,7 @@ function Multicharacter:RegistrationComplete(source, data)
     local charId = self.awaitingRegistration[source]
     local charIdentifier = ("%s%s"):format(Server.prefix, charId)
     self.awaitingRegistration[source] = nil
-    ESX.Players[Server:GetIdentifier(source)] = charIdentifier
+    ESX.Players[ESX.GetIdentifier(source)] = charIdentifier
 
     SetPlayerRoutingBucket(source, 0)
     TriggerEvent("esx:onPlayerJoined", source, charIdentifier, data)
@@ -96,5 +96,5 @@ end
 
 function Multicharacter:PlayerDropped(player)
     self.awaitingRegistration[player] = nil
-    ESX.Players[Server:GetIdentifier(player)] = nil
+    ESX.Players[ESX.GetIdentifier(player)] = nil
 end