diff --git a/programs/test/udp_proxy.c b/programs/test/udp_proxy.c
index 9a6087c..a50da1a 100644
--- a/programs/test/udp_proxy.c
+++ b/programs/test/udp_proxy.c
@@ -827,7 +827,6 @@
 
     get_options( argc, argv );
 
-#if defined(MBEDTLS_HAVE_TIME)
     /*
      * Decisions to drop/delay/duplicate packets are pseudo-random: dropping
      * exactly 1 in N packets would lead to problems when a flight has exactly
@@ -838,12 +837,15 @@
      */
     if( opt.seed == 0 )
     {
+#if defined(MBEDTLS_HAVE_TIME)
         opt.seed = (unsigned int) mbedtls_time( NULL );
+#else
+        opt.seed = 1;
+#endif /* MBEDTLS_HAVE_TIME */
         mbedtls_printf( "  . Pseudo-random seed: %u\n", opt.seed );
     }
 
     srand( opt.seed );
-#endif /* MBEDTLS_HAVE_TIME */
 
     /*
      * 0. "Connect" to the server