diff --git a/wsapi.go b/wsapi.go
index 9dff232..eccbb9f 100644
--- a/wsapi.go
+++ b/wsapi.go
@@ -635,15 +635,22 @@ func (s *Session) ChannelVoiceJoin(gID, cID string, mute, deaf bool) (voice *Voi
 // This should only be used when the VoiceServerUpdate will be intercepted and used elsewhere.
 //
 //    gID     : Guild ID of the channel to join.
-//    cID     : Channel ID of the channel to join.
+//    cID     : Channel ID of the channel to join, leave empty to disconnect.
 //    mute    : If true, you will be set to muted upon joining.
 //    deaf    : If true, you will be set to deafened upon joining.
 func (s *Session) ChannelVoiceJoinManual(gID, cID string, mute, deaf bool) (err error) {
 
 	s.log(LogInformational, "called")
 
+	var channelID *string
+	if cID == "" {
+		channelID = nil
+	} else {
+		channelID = &cID
+	}
+
 	// Send the request to Discord that we want to join the voice channel
-	data := voiceChannelJoinOp{4, voiceChannelJoinData{&gID, &cID, mute, deaf}}
+	data := voiceChannelJoinOp{4, voiceChannelJoinData{&gID, channelID, mute, deaf}}
 	s.wsMutex.Lock()
 	err = s.wsConn.WriteJSON(data)
 	s.wsMutex.Unlock()