diff --git a/src/mq303a/mq303a.h b/src/mq303a/mq303a.h
index 4c1aabaa..976fcbaa 100644
--- a/src/mq303a/mq303a.h
+++ b/src/mq303a/mq303a.h
@@ -27,6 +27,7 @@
 
 #include "upm.h"
 #include "mraa/aio.h"
+#include "mraa/gpio.h"
 
 /**
  * @brief MQ303A Alcohol Sensor library