diff --git a/headers/private/kernel/disk_device_manager/KDiskDeviceUtils.h b/headers/private/kernel/disk_device_manager/KDiskDeviceUtils.h
index 4fdc235bc8..0b65abd50b 100644
--- a/headers/private/kernel/disk_device_manager/KDiskDeviceUtils.h
+++ b/headers/private/kernel/disk_device_manager/KDiskDeviceUtils.h
@@ -3,6 +3,7 @@
 #ifndef _K_DISK_DEVICE_UTILS_H
 #define _K_DISK_DEVICE_UTILS_H
 
+#include <stdlib.h>
 #include <string.h>
 
 #include <SupportDefs.h>