diff --git a/grpc/grpc_client.h b/grpc/grpc_client.h
index e617229..38917ef 100644
--- a/grpc/grpc_client.h
+++ b/grpc/grpc_client.h
@@ -26,7 +26,7 @@
 #include <thread>
 
 #include "grpc/wenet.grpc.pb.h"
-#include "utils/wn_utils.h"S
+#include "utils/wn_utils.h"
 
 namespace wenet {