diff --git a/client.c b/client.c
index 0a52df9..727ddc4 100644
--- a/client.c
+++ b/client.c
@@ -80,6 +80,8 @@ int main(int argc,char *argv[]) {   //usage: ./client host port
                         headers.iov_len = sizeof(uint32_t);
                         hdtr.headers = &headers;
                         hdtr.hdr_cnt = 1;
+                        hdtr.trailers = NULL;
+                        hdtr.trl_cnt = 0;
                         if(!sendfile(fileno(fp), sockfd, 0, &len, &hdtr, 0)) puts("Send file success.");
                         else puts("Send file error.");
                     #else
diff --git a/server.c b/server.c
index 83bc34f..8aaed41 100644
--- a/server.c
+++ b/server.c
@@ -147,7 +147,9 @@ int send_all(THREADTIMER *timer) {
             headers.iov_len = head_len;
             hdtr.headers = &headers;
             hdtr.hdr_cnt = 1;
-            re = sendfile(fileno(fp), timer->accept_fd, 0, &len, &hdtr, 0);
+            hdtr.trailers = NULL;
+            hdtr.trl_cnt = 0;
+            re = !sendfile(fileno(fp), timer->accept_fd, 0, &len, &hdtr, 0);
         #else
             send_data(timer->accept_fd, timer->data, head_len);
             re = !sendfile(timer->accept_fd, fileno(fp), &len, file_size);