diff --git a/boards/chronos/drivers/include/display.h b/boards/chronos/drivers/include/display.h
index 11de0ada31..a38e0c9e23 100644
--- a/boards/chronos/drivers/include/display.h
+++ b/boards/chronos/drivers/include/display.h
@@ -38,6 +38,8 @@
 #ifndef DISPLAY_H
 #define DISPLAY_H
 
+#include <stdint.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif