diff --git a/examples/fastspeech/README.md b/examples/fastspeech/README.md
index 0c40488db4c4acf5dbc6def70aa9a5a7322fcbc3..08c3cfdb9201336f54671f8bf59edf45764311d9 100644
--- a/examples/fastspeech/README.md
+++ b/examples/fastspeech/README.md
@@ -129,7 +129,7 @@ python synthesis.py \
 --vocoder='griffin-lim' \
 ```
 
-We currently support two vocoders, ``Griffin-Lim`` algorithm and ``WaveFlow``. You can set ``--vocoder`` to use one of them. If you want to use ``waveflow`` as your vocoder, you need to set ``--config_vocoder`` and ``--checkpoint_vocoder`` which are the path of the config and checkpoint of vocoder. You can download the pre-trained model of ``waveflow`` from [here](https://github.com/PaddlePaddle/Parakeet#vocoders).
+We currently support two vocoders, Griffin-Lim algorithm and WaveFlow. You can set ``--vocoder`` to use one of them. If you want to use WaveFlow as your vocoder, you need to set ``--config_vocoder`` and ``--checkpoint_vocoder`` which are the path of the config and checkpoint of vocoder. You can download the pre-trained model of WaveFlow from [here](https://github.com/PaddlePaddle/Parakeet#vocoders).
 
 Or you can run the script file directly.
 
diff --git a/examples/transformer_tts/README.md b/examples/transformer_tts/README.md
index e8e013186f09e3608c8d397bc651ecc16eb8f5e9..f1e73fe4a1c23dd0f104f6d4a8d937b1653062b4 100644
--- a/examples/transformer_tts/README.md
+++ b/examples/transformer_tts/README.md
@@ -98,7 +98,7 @@ python synthesis.py \
 --vocoder='griffin-lim' \
 ```
 
-We currently support two vocoders,  ``Griffin-Lim`` algorithm and ``WaveFlow``. You can set ``--vocoder`` to use one of them. If you want to use ``waveflow`` as your vocoder, you need to set ``--config_vocoder`` and ``--checkpoint_vocoder`` which are the path of the config and checkpoint of vocoder. You can download the pre-trained model of ``waveflow`` from [here](https://github.com/PaddlePaddle/Parakeet#vocoders).
+We currently support two vocoders,  Griffin-Lim algorithm and WaveFlow. You can set ``--vocoder`` to use one of them. If you want to use WaveFlow as your vocoder, you need to set ``--config_vocoder`` and ``--checkpoint_vocoder`` which are the path of the config and checkpoint of vocoder. You can download the pre-trained model of WaveFlow from [here](https://github.com/PaddlePaddle/Parakeet#vocoders).
 
 Or you can run the script file directly.