diff --git a/src/plugins/http/inc/httpInt.h b/src/plugins/http/inc/httpInt.h
index 2aa01244c6877a8ec614fbe5a2f63f296f3df4f5..52b83c0260496d39aec0fc999c18ec96d1eeb509 100644
--- a/src/plugins/http/inc/httpInt.h
+++ b/src/plugins/http/inc/httpInt.h
@@ -175,7 +175,7 @@ typedef struct HttpThread {
   EpollFd         pollFd;
   int32_t         numOfContexts;
   int32_t         threadId;
-  char            label[HTTP_LABEL_SIZE << 1];
+  char            label[HTTP_LABEL_SIZE << 2];
   bool (*processData)(HttpContext *pContext);
 } HttpThread;
 
diff --git a/src/plugins/http/src/httpServer.c b/src/plugins/http/src/httpServer.c
index c00d8bdebdcead98943628a22d4b886a03532f15..fb3c16824ff812d9cfec6e49d6e46dc012402f9a 100644
--- a/src/plugins/http/src/httpServer.c
+++ b/src/plugins/http/src/httpServer.c
@@ -313,7 +313,7 @@ bool httpInitConnect() {
 
   HttpThread *pThread = pServer->pThreads;
   for (int32_t i = 0; i < pServer->numOfThreads; ++i) {
-    sprintf(pThread->label, "%s%d", pServer->label, i);
+    snprintf(pThread->label, sizeof(pThread->label), "%s%d", pServer->label, i);
     pThread->processData = pServer->processData;
     pThread->threadId = i;