diff --git a/lib/utils/transcription-utils.js b/lib/utils/transcription-utils.js
index e032a0be..07422caa 100644
--- a/lib/utils/transcription-utils.js
+++ b/lib/utils/transcription-utils.js
@@ -417,12 +417,9 @@ module.exports = (logger) => {
       const {nuanceOptions = {}} = rOpts;
       opts = {
         ...opts,
-        ...(sttCredentials.access_token) &&
-          {NUANCE_ACCESS_TOKEN: sttCredentials.access_token},
-        ...(sttCredentials.krypton_endpoint) &&
-          {NUANCE_KRYPTON_ENDPOINT: sttCredentials.krypton_endpoint},
-        ...(nuanceOptions.topic) &&
-          {NUANCE_TOPIC: nuanceOptions.topic},
+        ...(sttCredentials.access_token) && {NUANCE_ACCESS_TOKEN: sttCredentials.access_token},
+        ...(sttCredentials.nuance_stt_uri) && {NUANCE_KRYPTON_ENDPOINT: sttCredentials.nuance_stt_uri},
+        ...(nuanceOptions.topic) && {NUANCE_TOPIC: nuanceOptions.topic},
         ...(nuanceOptions.utteranceDetectionMode) &&
           {NUANCE_UTTERANCE_DETECTION_MODE: nuanceOptions.utteranceDetectionMode},
         ...(nuanceOptions.punctuation || rOpts.punctuation) && {NUANCE_PUNCTUATION: nuanceOptions.punctuation},
@@ -646,7 +643,7 @@ module.exports = (logger) => {
     if (recognizer.vendor === 'nuance') {
       const {clientId, secret, kryptonEndpoint} = recognizer.nuanceOptions || {};
       if (clientId && secret) return {client_id: clientId, secret};
-      if (kryptonEndpoint) return {krypton_endpoint: kryptonEndpoint};
+      if (kryptonEndpoint) return {nuance_stt_uri: kryptonEndpoint};
     }
     else if (recognizer.vendor === 'nvidia') {
       const {rivaUri} = recognizer.nvidiaOptions || {};