diff --git a/hardware/libraries/Firmata/Firmata.h b/hardware/libraries/Firmata/Firmata.h
index 702e1dc4c..c556c4a47 100644
--- a/hardware/libraries/Firmata/Firmata.h
+++ b/hardware/libraries/Firmata/Firmata.h
@@ -13,6 +13,7 @@
 #ifndef Firmata_h
 #define Firmata_h
 
+#include <WProgram.h>
 #include <inttypes.h>
 
 
@@ -66,7 +67,7 @@ extern "C" {
 
 
 // TODO make it a subclass of HardwareSerial
-class FirmataClass
+class FirmataClass : public Print
 {
 public:
 	FirmataClass();