diff --git a/src/whisper_streaming/timed_objects.py b/src/whisper_streaming/timed_objects.py
index d6f7b36..b1baa0a 100644
--- a/src/whisper_streaming/timed_objects.py
+++ b/src/whisper_streaming/timed_objects.py
@@ -20,4 +20,8 @@ class Sentence(TimedText):
 
 @dataclass
 class Transcript(TimedText):
+    pass
+
+@dataclass
+class SpeakerSegment(TimedText):
     pass
\ No newline at end of file