diff --git a/mendel.c b/mendel.c
index 5964f5e..de3095c 100644
--- a/mendel.c
+++ b/mendel.c
@@ -57,8 +57,10 @@
   #include "../simulavr/src/simulavr_info.h"
   SIMINFO_DEVICE(MCU_STR);
   SIMINFO_CPUFREQUENCY(F_CPU);
-  SIMINFO_SERIAL_IN("D0", "-", BAUD);
-  SIMINFO_SERIAL_OUT("D1", "-", BAUD);
+  #ifdef BAUD
+    SIMINFO_SERIAL_IN("D0", "-", BAUD);
+    SIMINFO_SERIAL_OUT("D1", "-", BAUD);
+  #endif
 #endif
 
 #ifdef CANNED_CYCLE