diff --git a/speechx/examples/ds2_ol/websocket/websocket_client_main.cc b/speechx/examples/ds2_ol/websocket/websocket_client_main.cc
index c8c438ec..df658b0a 100644
--- a/speechx/examples/ds2_ol/websocket/websocket_client_main.cc
+++ b/speechx/examples/ds2_ol/websocket/websocket_client_main.cc
@@ -26,7 +26,7 @@ using kaldi::int16;
 int main(int argc, char* argv[]) {
     gflags::ParseCommandLineFlags(&argc, &argv, false);
     google::InitGoogleLogging(argv[0]);
-    
+
     kaldi::SequentialTableReader<kaldi::WaveHolder> wav_reader(
         FLAGS_wav_rspecifier);