diff --git a/lib/envelopes.js b/lib/envelopes.js
index 1453c51..843f553 100644
--- a/lib/envelopes.js
+++ b/lib/envelopes.js
@@ -24,7 +24,7 @@ export async function parseEnvelope({
   }
 
   // parse data
-  const data = dataURL.slice(commaIndex);
+  const data = dataURL.slice(commaIndex + 1);
 
   try {
     // VC-JWT