diff --git a/wiringpi.i b/wiringpi.i
index 27a5c91..5d3f5b8 100644
--- a/wiringpi.i
+++ b/wiringpi.i
@@ -400,6 +400,7 @@ extern void softToneWrite  (int pin, int freq) ;
 
 int wiringPiSPIGetFd  (int channel) ;
 int wiringPiSPIDataRW (int channel, unsigned char *data, int len) ;
+int wiringPiSPISetupMode (int channel, int speed, int mode) ;
 int wiringPiSPISetup  (int channel, int speed) ;
 
 // I2C