diff --git a/src/gruvin9x/somo14d.cpp b/src/gruvin9x/somo14d.cpp
index 546c58624..1a6f4f6c1 100644
--- a/src/gruvin9x/somo14d.cpp
+++ b/src/gruvin9x/somo14d.cpp
@@ -40,7 +40,9 @@
  old DSM2 code) which seemed to much for the interrupt. 
  */
 
+#ifndef SIMU
 #include "open9x.h"
+#endif
 
 // Start and stop bits need to be 2ms in duration. Start bit is low, stop bit is high
 #define SOMOSSBIT    4 //The 2ms of a stop/start bit