diff --git a/src/arduino/Arduino.h b/src/arduino/Arduino.h
index a61468f..42156d0 100644
--- a/src/arduino/Arduino.h
+++ b/src/arduino/Arduino.h
@@ -139,6 +139,7 @@ void digitalWrite(uint8_t, uint8_t);
 int digitalRead(uint8_t);
 int analogRead(uint8_t);
 void analogReference(uint8_t mode);
+void analogReadResolution(uint8_t mode);
 void analogWrite(uint8_t, int);
 
 unsigned long millis(void);