diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 4b4c44e519d5b58b00bcbdd1997b62101181baa4..658093a385e12190c2292b7ba7587337535bd68d 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -4703,7 +4703,7 @@ static int64_t generateData(char *recBuf, char **data_type,
       double t = rand_double();
       pstr += sprintf(pstr, ",%20.8f", t);
     } else if (strcasecmp(data_type[i % c], "BOOL") == 0) {
-      bool b = taosRandom() & 1;
+      bool b = rand_bool() & 1;
       pstr += sprintf(pstr, ",%s", b ? "true" : "false");
     } else if (strcasecmp(data_type[i % c], "BINARY") == 0) {
       char *s = malloc(lenOfBinary);