diff --git a/ArduinoAddons/Arduino_0.xx/Sanguino/cores/arduino/pins_arduino.h b/ArduinoAddons/Arduino_0.xx/Sanguino/cores/arduino/pins_arduino.h
index fd7ee5c8c2..046f0330fd 100644
--- a/ArduinoAddons/Arduino_0.xx/Sanguino/cores/arduino/pins_arduino.h
+++ b/ArduinoAddons/Arduino_0.xx/Sanguino/cores/arduino/pins_arduino.h
@@ -39,6 +39,11 @@
 #define TIMER2A 6
 #define TIMER2B 7
 
+const static uint8_t SS   = 4;
+const static uint8_t MOSI = 5;
+const static uint8_t MISO = 6;
+const static uint8_t SCK  = 7;
+
 extern const uint8_t PROGMEM port_to_mode_PGM[];
 extern const uint8_t PROGMEM port_to_input_PGM[];
 extern const uint8_t PROGMEM port_to_output_PGM[];