diff --git a/src/drivers/imu/invensense/icm20649/InvenSense_ICM20649_registers.hpp b/src/drivers/imu/invensense/icm20649/InvenSense_ICM20649_registers.hpp
index 7ea181f339..418f7b2add 100644
--- a/src/drivers/imu/invensense/icm20649/InvenSense_ICM20649_registers.hpp
+++ b/src/drivers/imu/invensense/icm20649/InvenSense_ICM20649_registers.hpp
@@ -41,6 +41,7 @@
 #pragma once
 
 #include <cstdint>
+#include <cstdlib>
 
 namespace InvenSense_ICM20649
 {
diff --git a/src/drivers/imu/invensense/icm42670p/InvenSense_ICM42670P_registers.hpp b/src/drivers/imu/invensense/icm42670p/InvenSense_ICM42670P_registers.hpp
index 5e9d8259c7..5d1c580bd5 100644
--- a/src/drivers/imu/invensense/icm42670p/InvenSense_ICM42670P_registers.hpp
+++ b/src/drivers/imu/invensense/icm42670p/InvenSense_ICM42670P_registers.hpp
@@ -41,6 +41,7 @@
 #pragma once
 
 #include <cstdint>
+#include <cstdlib>
 
 namespace InvenSense_ICM42670P
 {