diff --git a/engine/core/duplex_pipeline.py b/engine/core/duplex_pipeline.py
index 1b7ed58..561997f 100644
--- a/engine/core/duplex_pipeline.py
+++ b/engine/core/duplex_pipeline.py
@@ -521,7 +521,7 @@ class DuplexPipeline:
 
         # Skip if no meaningful text
         if not user_text or not user_text.strip():
-            logger.debug("EOU detected but no transcription - skipping")
+            logger.debug("[EOU] Detected but no transcription - skipping")
             # Reset for next utterance
             self._audio_buffer = b""
             self._last_sent_transcript = ""
@@ -529,7 +529,7 @@ class DuplexPipeline:
             await self.conversation.set_state(ConversationState.IDLE)
             return
 
-        logger.info(f"EOU detected - user said: {user_text[:100]}...")
+        logger.info(f"[EOU] Detected - user said: {user_text[:100]}...")
 
         # For ASR backends that already emitted final via callback,
         # avoid duplicating transcript.final on EOU.