diff --git a/src/kit/shell/src/shellDarwin.c b/src/kit/shell/src/shellDarwin.c
index 76d36fe861795ad2f02ea8bb1b50337c2d6d86d8..b624f5ee68535026580af25aa962a8f6a79f963e 100644
--- a/src/kit/shell/src/shellDarwin.c
+++ b/src/kit/shell/src/shellDarwin.c
@@ -156,7 +156,7 @@ void shellParseArgument(int argc, char *argv[], struct arguments *arguments) {
       // For time zone
     else if (strcmp(argv[i], "-T") == 0) {
       if (i < argc - 1) {
-        arguments->threadNum = argv[++i];
+        arguments->threadNum = atoi(argv[++i]);
       } else {
         fprintf(stderr, "option -T requires an argument\n");
         exit(EXIT_FAILURE);
diff --git a/src/os/darwin/src/tdarwin.c b/src/os/darwin/src/tdarwin.c
index 840dee5a11b7ae14a8c60c6fc861cd6c75c49517..af3b1bd8a50d9f52d5f81f4dd42f483c510866c9 100644
--- a/src/os/darwin/src/tdarwin.c
+++ b/src/os/darwin/src/tdarwin.c
@@ -38,6 +38,7 @@ char tsDirectory[TSDB_FILENAME_LEN] = "/var/lib/taos";
 char dataDir[TSDB_FILENAME_LEN] = "/var/lib/taos";
 char logDir[TSDB_FILENAME_LEN] = "~/TDengineLog";
 char scriptDir[TSDB_FILENAME_LEN] = "/etc/taos";
+char osName[] = "Darwin";
 
 int64_t str2int64(char *str) {
   char *endptr = NULL;