diff --git a/src/maa.i b/src/maa.i
index ec3f378..c8f4040 100644
--- a/src/maa.i
+++ b/src/maa.i
@@ -6,3 +6,4 @@
 %include "i2c.h"
 %include "i2cslave.h"
 %include "gpio.h"
+%include "pwm.h"