diff --git a/programs/ssl/dtls_client.c b/programs/ssl/dtls_client.c
index c29ab34..4d7177f 100644
--- a/programs/ssl/dtls_client.c
+++ b/programs/ssl/dtls_client.c
@@ -79,6 +79,14 @@
 
 #define DEBUG_LEVEL 0
 
+#if defined( MBEDTLS_CHECK_PARAMS ) && defined(MBEDTLS_PLATFORM_C)
+void mbedtls_param_failed( char* failure_condition, char* file, int line )
+{
+    mbedtls_printf("%s:%i: Input param failed - %sn", file, line,                           failure_condition );
+    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
+}
+#endif
+
 static void my_debug( void *ctx, int level,
                       const char *file, int line,
                       const char *str )