diff --git a/services/media_engine/modules/sink/audio_sink.cpp b/services/media_engine/modules/sink/audio_sink.cpp
index 17aa5308082611bd4e04e868e731e0dc500e0231..7850677fd798a1e7d95590bfcfa83d824fd4f087 100644
--- a/services/media_engine/modules/sink/audio_sink.cpp
+++ b/services/media_engine/modules/sink/audio_sink.cpp
@@ -846,7 +846,7 @@ void AudioSink::AudioDataSynchroizer::UpdateLastBufferPTS(int64_t bufferOffset,
     lastBufferOffset_ = bufferOffset;
     sumDuration_ += bufferDuration_;
     FALSE_RETURN_MSG(speed != 0, "speed is 0");
-    compensateDuration_ += bufferDuration_ - bufferDuration_ / speed;
+    compensateDuration_ += static_cast<int64_t>(bufferDuration_ - bufferDuration_ / speed);
 }
 
 void AudioSink::UpdateRenderInfo()