diff --git a/sherpa-onnx/csrc/voice-activity-detector.cc b/sherpa-onnx/csrc/voice-activity-detector.cc
index e3c8a7950..29acd70ae 100644
--- a/sherpa-onnx/csrc/voice-activity-detector.cc
+++ b/sherpa-onnx/csrc/voice-activity-detector.cc
@@ -123,7 +123,7 @@ class VoiceActivityDetector::Impl {
       return;
     }
 
-    int32_t end = buffer_.Tail()
+    int32_t end = buffer_.Tail();
     if (end <= start_) {
       return;
     }