diff --git a/libraries/FastSerial/examples/FastSerial/FastSerial.pde b/libraries/FastSerial/examples/FastSerial/FastSerial.pde
index a1af765233..b9c1dfe921 100644
--- a/libraries/FastSerial/examples/FastSerial/FastSerial.pde
+++ b/libraries/FastSerial/examples/FastSerial/FastSerial.pde
@@ -13,14 +13,8 @@
 // disabled.
 //
 #include <FastSerial.h>
-
-#undef PROGMEM 
-#define PROGMEM __attribute__(( section(".progmem.data") )) 
-
-# undef PSTR
-# define PSTR(s) (__extension__({static prog_char __c[] PROGMEM = (s); \
-                (prog_char_t *)&__c[0];}))
-
+#include <AP_Common.h>
+#include <AP_Math.h>
 //
 // Create a FastSerial driver that looks just like the stock Arduino
 // driver.