diff --git a/voicechat/eos_impl.go b/voicechat/eos_impl.go
index d05370c..9f51fdf 100644
--- a/voicechat/eos_impl.go
+++ b/voicechat/eos_impl.go
@@ -88,7 +88,7 @@ func (gv *eosauth) joinVoiceChat(data JoinVoiceChatRequst) map[string]any {
 	voiceendpoint := fmt.Sprintf("https://api.epicgames.dev/rtc/v1/%s/room/%s", config.EosDeploymentId, data.Gid)
 	participants := eosRoomParticipants{
 		Participants: []eosRoomParticipantRequests{
-			{Puid: data.Mid},
+			{Puid: data.Alias},
 		},
 	}
 
@@ -114,7 +114,7 @@ func (gv *eosauth) joinVoiceChat(data JoinVoiceChatRequst) map[string]any {
 	participant := par.(map[string]any)
 
 	channelCredentials := map[string]any{
-		"override_userid":   data.Mid,
+		"override_userid":   data.Alias,
 		"client_base_url":   result["clientBaseUrl"],
 		"participant_token": participant["token"],
 	}
@@ -125,7 +125,7 @@ func (gv *eosauth) joinVoiceChat(data JoinVoiceChatRequst) map[string]any {
 }
 
 func (gv *eosauth) leaveVoiceChat(data LeaveVoiceChatRequst) {
-	voiceendpoint := fmt.Sprintf("https://api.epicgames.dev/rtc/v1/%s/room/%s/participants/%s", config.EosDeploymentId, data.Gid, data.Mid)
+	voiceendpoint := fmt.Sprintf("https://api.epicgames.dev/rtc/v1/%s/room/%s/participants/%s", config.EosDeploymentId, data.Gid, data.Alias)
 	accessToken := gv.AccessToken
 
 	req, _ := http.NewRequest("DELETE", voiceendpoint, nil)
diff --git a/voicechat/voice_chat.go b/voicechat/voice_chat.go
index 94abd0f..f449691 100644
--- a/voicechat/voice_chat.go
+++ b/voicechat/voice_chat.go
@@ -11,14 +11,13 @@ import (
 
 type JoinVoiceChatRequst struct {
 	Gid     string
-	Mid     string
-	Service string
 	Alias   string
+	Service string
 }
 
 type LeaveVoiceChatRequst struct {
 	Gid     string
-	Mid     string
+	Alias   string
 	Service string
 }