diff --git a/packages/google-cloud-texttospeech/protos/google/cloud/texttospeech/v1beta1/cloud_tts_lrs.proto b/packages/google-cloud-texttospeech/protos/google/cloud/texttospeech/v1beta1/cloud_tts_lrs.proto
index 9adcd6ae600..17bc9479f0b 100644
--- a/packages/google-cloud-texttospeech/protos/google/cloud/texttospeech/v1beta1/cloud_tts_lrs.proto
+++ b/packages/google-cloud-texttospeech/protos/google/cloud/texttospeech/v1beta1/cloud_tts_lrs.proto
@@ -56,7 +56,7 @@ service TextToSpeechLongAudioSynthesize {
 // `SynthesizeLongAudio` method.
 message SynthesizeLongAudioRequest {
   // The resource states of the request in the form of
-  // projects/*/locations/*/voices/*.
+  // `projects/*/locations/*/voices/*`.
   string parent = 1;
 
   // Required. The Synthesizer requires either plain text or SSML as input.
diff --git a/packages/google-cloud-texttospeech/samples/generated/v1beta1/text_to_speech_long_audio_synthesize.synthesize_long_audio.js b/packages/google-cloud-texttospeech/samples/generated/v1beta1/text_to_speech_long_audio_synthesize.synthesize_long_audio.js
index 6c71d6fdceb..5be501c5ecd 100644
--- a/packages/google-cloud-texttospeech/samples/generated/v1beta1/text_to_speech_long_audio_synthesize.synthesize_long_audio.js
+++ b/packages/google-cloud-texttospeech/samples/generated/v1beta1/text_to_speech_long_audio_synthesize.synthesize_long_audio.js
@@ -30,7 +30,7 @@ function main(input, audioConfig) {
    */
   /**
    *  The resource states of the request in the form of
-   *  projects/* /locations/* /voices/*.
+   *  `projects/* /locations/* /voices/*`.
    */
   // const parent = 'abc123'
   /**
diff --git a/packages/google-cloud-texttospeech/src/v1beta1/text_to_speech_long_audio_synthesize_client.ts b/packages/google-cloud-texttospeech/src/v1beta1/text_to_speech_long_audio_synthesize_client.ts
index a3afd8cefa1..2d2953c56b4 100644
--- a/packages/google-cloud-texttospeech/src/v1beta1/text_to_speech_long_audio_synthesize_client.ts
+++ b/packages/google-cloud-texttospeech/src/v1beta1/text_to_speech_long_audio_synthesize_client.ts
@@ -346,7 +346,7 @@ export class TextToSpeechLongAudioSynthesizeClient {
    *   The request object that will be sent.
    * @param {string} request.parent
    *   The resource states of the request in the form of
-   *   projects/* /locations/* /voices/*.
+   *   `projects/* /locations/* /voices/*`.
    * @param {google.cloud.texttospeech.v1beta1.SynthesisInput} request.input
    *   Required. The Synthesizer requires either plain text or SSML as input.
    * @param {google.cloud.texttospeech.v1beta1.AudioConfig} request.audioConfig