diff --git a/gateway/src/schema/VoiceStateUpdateSchema.ts b/gateway/src/schema/VoiceStateUpdateSchema.ts
index c046600d..f6480414 100644
--- a/gateway/src/schema/VoiceStateUpdateSchema.ts
+++ b/gateway/src/schema/VoiceStateUpdateSchema.ts
@@ -4,6 +4,7 @@ export const VoiceStateUpdateSchema = {
 	self_mute: Boolean,
 	self_deaf: Boolean,
 	$self_video: Boolean,	//required in docs but bots don't always send it
+	$preferred_region: String,
 };
 
 export interface VoiceStateUpdateSchema {
@@ -12,4 +13,5 @@ export interface VoiceStateUpdateSchema {
 	self_mute: boolean;
 	self_deaf: boolean;
 	self_video?: boolean;
+	preferred_region?: string;
 }
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