diff --git a/src/kit/taosnetwork/client.c b/src/kit/taosnetwork/client.c
index 4b72c5c8598710501ced9e7c86cc51250a91e592..102f9b9d89b3e39218d53105fe620b0726e41d45 100644
--- a/src/kit/taosnetwork/client.c
+++ b/src/kit/taosnetwork/client.c
@@ -83,7 +83,7 @@ int checkTcpPort(info_s *info) {
   struct sockaddr_in serverAddr;
   char               sendbuf[BUFFER_SIZE];
   char               recvbuf[BUFFER_SIZE];
-  int                iDataNum;
+  int                iDataNum = 0;
   if ((clientSocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
     printf("socket() fail: %s\n", strerror(errno));
     return -1;
@@ -149,7 +149,7 @@ int checkUdpPort(info_s *info) {
   struct sockaddr_in serverAddr;
   char               sendbuf[BUFFER_SIZE];
   char               recvbuf[BUFFER_SIZE];
-  int                iDataNum;
+  int                iDataNum = 0;
   if ((clientSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
     perror("socket");
     return -1;