diff --git a/whisper_live/server.py b/whisper_live/server.py
index b668a6d..3c38d2a 100644
--- a/whisper_live/server.py
+++ b/whisper_live/server.py
@@ -1032,6 +1032,8 @@ def update_segments(self, segments, duration):
         """
         offset = None
         self.current_out = ''
+        last_segment = None
+
         # process complete segments
         if len(segments) > 1:
             for i, s in enumerate(segments[:-1]):