diff --git a/TTS/tts/layers/xtts/stream_generator.py b/TTS/tts/layers/xtts/stream_generator.py
index f1e7da12..a8dd07b1 100644
--- a/TTS/tts/layers/xtts/stream_generator.py
+++ b/TTS/tts/layers/xtts/stream_generator.py
@@ -1,3 +1,5 @@
+# Adapted from: https://github.com/LowinLi/transformers-stream-generator
+
 from transformers import (
     GenerationConfig,
     GenerationMixin,