diff --git a/src/Message.ts b/src/Message.ts
index 4ec3470ac..45f2d9cee 100644
--- a/src/Message.ts
+++ b/src/Message.ts
@@ -79,7 +79,7 @@ export default class Message implements proto.V1Message {
   }
 
   get sent(): Date | undefined {
-    return this.header ? new Date(this.header?.timestamp.toNumber()) : undefined
+    return this.header ? new Date(this.header?.timestamp) : undefined
   }
 
   // wallet address derived from the signature of the message sender