diff --git a/src/pipecat/services/rime/tts.py b/src/pipecat/services/rime/tts.py
index 6c3ff4e23..248c84008 100644
--- a/src/pipecat/services/rime/tts.py
+++ b/src/pipecat/services/rime/tts.py
@@ -235,6 +235,7 @@ class RimeTTSService(AudioContextTTSService):
             if params.language
             else None,
             segment=params.segment,
+            inlineSpeedAlpha=None,  # Not applicable here
             # Arcana params
             repetition_penalty=params.repetition_penalty,
             temperature=params.temperature,