diff --git a/tools/shell/src/shellArguments.c b/tools/shell/src/shellArguments.c
index 1930a16f46..71fa777d63 100644
--- a/tools/shell/src/shellArguments.c
+++ b/tools/shell/src/shellArguments.c
@@ -129,7 +129,7 @@ static struct argp_option shellOptions[] = {
     {"timeout", 'T', "SECONDS", 0, SHELL_TIMEOUT},
 #endif
     {"pktnum", 'N', "PKTNUM", 0, SHELL_PKT_NUM},
-    {"bimode", 'B', "BIMODE", 0, SHELL_BI_MODE},
+    {"bimode", 'B', 0, 0, SHELL_BI_MODE},
     {0},
 };
 
diff --git a/tools/shell/src/shellEngine.c b/tools/shell/src/shellEngine.c
index 40b0236d07..60b1dfab41 100644
--- a/tools/shell/src/shellEngine.c
+++ b/tools/shell/src/shellEngine.c
@@ -1293,6 +1293,7 @@ int32_t shellExecute() {
 
  if(shell.args.is_bi_mode) { 
   // need set bi mode
+  printf("Set BI mode is true.\n");
 #ifdef WEBSOCKET
     //ws_taos_set_conn_mode(shell.ws_conn, TAOS_CONN_MODE_BI, 1);
 #else