diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index f9b147d43d44943964ac5237836da300d0cab795..6acb317a9edcbd7f5d493ffb1b309f156659d3b1 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -743,8 +743,8 @@ static void printHelp() {
             "The number of threads. Default is 10.");
     printf("%s%s%s%s\n", indent, "-i", indent,
             "The sleep time (ms) between insertion. Default is 0.");
-    printf("%s%s%s%s%d\n", indent, "-S", indent,
-            "The timestamp step between insertion. Default is %d.",
+    printf("%s%s%s%s%d.\n", indent, "-S", indent,
+            "The timestamp step between insertion. Default is ",
             DEFAULT_TIMESTAMP_STEP);
     printf("%s%s%s%s\n", indent, "-r", indent,
             "The number of records per request. Default is 30000.");
diff --git a/src/kit/taosdump/taosdump.c b/src/kit/taosdump/taosdump.c
index 5139f98cded69614ce3b037cc61d099dedefdf8e..50a58991b8e5ec27a052cb2e1252cb6858d8df2c 100644
--- a/src/kit/taosdump/taosdump.c
+++ b/src/kit/taosdump/taosdump.c
@@ -453,6 +453,8 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state) {
         case 'E':
             g_args.end_time = atol(arg);
             break;
+        case 'C':
+            break;
         case 'B':
             g_args.data_batch = atoi(arg);
             if (g_args.data_batch > MAX_RECORDS_PER_REQ) {