diff --git a/lib/utils/transcription-utils.js b/lib/utils/transcription-utils.js
index d54a4d91..0817daba 100644
--- a/lib/utils/transcription-utils.js
+++ b/lib/utils/transcription-utils.js
@@ -225,12 +225,17 @@ const normalizeGoogle = (evt, channel, language) => {
   };
 };
 
-const normalizeCustom = (evt, channel, language) => {
+const normalizeCustom = (evt, channel, language, vendor) => {
+  const copy = JSON.parse(JSON.stringify(evt));
   return {
     language_code: language,
     channel_tag: channel,
     is_final: evt.is_final,
-    alternatives: [evt.alternatives[0]]
+    alternatives: [evt.alternatives[0]],
+    vendor: {
+      name: vendor,
+      evt: copy
+    }
   };
 };
 
@@ -314,7 +319,7 @@ module.exports = (logger) => {
         return normalizeSoniox(evt, channel, language);
       default:
         if (vendor.startsWith('custom:')) {
-          return normalizeCustom(evt, channel, language);
+          return normalizeCustom(evt, channel, language, vendor);
         }
         logger.error(`Unknown vendor ${vendor}`);
         return evt;