diff --git a/exporters/jaeger/src/TUDPTransport.cc b/exporters/jaeger/src/TUDPTransport.cc
index e411127..a5e08fa 100644
--- a/exporters/jaeger/src/TUDPTransport.cc
+++ b/exporters/jaeger/src/TUDPTransport.cc
@@ -2,7 +2,9 @@
 // SPDX-License-Identifier: Apache-2.0
 
 #include <sstream>  // std::stringstream
-
+#ifndef _MSC_VER
+#include <unistd.h>
+#endif
 #include "TUDPTransport.h"
 #include "opentelemetry/sdk_config.h"
 
@@ -48,7 +50,7 @@ void TUDPTransport::open()
   hints.ai_socktype = SOCK_DGRAM;
   hints.ai_flags    = AI_PASSIVE | AI_ADDRCONFIG;
 
-  sprintf(port, "%d", port_);
+  snprintf(port, sizeof(port), "%d", port_);
 
   error = getaddrinfo(host_.c_str(), port, &hints, &server_addr_info_);