diff --git a/library/net.c b/library/net.c
index a8591ed0d..023e0e3df 100644
--- a/library/net.c
+++ b/library/net.c
@@ -129,6 +129,12 @@ typedef UINT32 uint32_t;
                            (((unsigned long )(n) & 0xFF000000) >> 24))
 #endif
 
+#if defined(POLARSSL_PLATFORM_C)
+#include "polarssl/platform.h"
+#else
+#define polarssl_snprintf snprintf
+#endif
+
 unsigned short net_htons( unsigned short n );
 unsigned long  net_htonl( unsigned long  n );
 #define net_htons(n) POLARSSL_HTONS(n)
@@ -173,7 +179,7 @@ int net_connect( int *fd, const char *host, int port )
 
     /* getaddrinfo expects port as a string */
     memset( port_str, 0, sizeof( port_str ) );
-    snprintf( port_str, sizeof( port_str ), "%d", port );
+    polarssl_snprintf( port_str, sizeof( port_str ), "%d", port );
 
     /* Do name resolution with both IPv6 and IPv4, but only TCP */
     memset( &hints, 0, sizeof( hints ) );
@@ -259,7 +265,7 @@ int net_bind( int *fd, const char *bind_ip, int port )
 
     /* getaddrinfo expects port as a string */
     memset( port_str, 0, sizeof( port_str ) );
-    snprintf( port_str, sizeof( port_str ), "%d", port );
+    polarssl_snprintf( port_str, sizeof( port_str ), "%d", port );
 
     /* Bind to IPv6 and/or IPv4, but only in TCP */
     memset( &hints, 0, sizeof( hints ) );