diff --git a/src/api/types/messages.ts b/src/api/types/messages.ts
index d1fcd0d00..6c6b5454d 100644
--- a/src/api/types/messages.ts
+++ b/src/api/types/messages.ts
@@ -279,7 +279,7 @@ export interface ApiGeoLive {
   mediaType: 'geoLive';
   geo: ApiGeoPoint;
   heading?: number;
-  period?: number;
+  period: number;
 }
 
 export type ApiLocation = ApiGeo | ApiVenue | ApiGeoLive;