diff --git a/src/modules/commander/px4_custom_mode.h b/src/modules/commander/px4_custom_mode.h
index b60a7e0b9c..2144d34607 100644
--- a/src/modules/commander/px4_custom_mode.h
+++ b/src/modules/commander/px4_custom_mode.h
@@ -8,6 +8,8 @@
 #ifndef PX4_CUSTOM_MODE_H_
 #define PX4_CUSTOM_MODE_H_
 
+#include <stdint.h>
+
 enum PX4_CUSTOM_MAIN_MODE {
 	PX4_CUSTOM_MAIN_MODE_MANUAL = 1,
 	PX4_CUSTOM_MAIN_MODE_SEATBELT,