diff --git a/src/drivers/drv_hrt.h b/src/drivers/drv_hrt.h
index d130d68b34..8bfc90c64b 100644
--- a/src/drivers/drv_hrt.h
+++ b/src/drivers/drv_hrt.h
@@ -41,6 +41,7 @@
 
 #include <sys/types.h>
 #include <stdbool.h>
+#include <inttypes.h>
 
 #include <time.h>
 #include <queue.h>