diff --git a/src/pipecat/frames/frames.py b/src/pipecat/frames/frames.py
index 8eb32664c..61f4d3fe2 100644
--- a/src/pipecat/frames/frames.py
+++ b/src/pipecat/frames/frames.py
@@ -132,7 +132,7 @@ class TranscriptionFrame(TextFrame):
     timestamp: str
 
     def __str__(self):
-        return f"{self.name}(user: {self.user_id}, text: {self.text}, timestamp: {self.timestamp})"
+        return f"{self.name}(user_id: {self.user_id}, text: {self.text}, timestamp: {self.timestamp})"
 
 
 @dataclass