diff --git a/sys/compat/linuxkpi/common/include/linux/cc_platform.h b/sys/compat/linuxkpi/common/include/linux/cc_platform.h
--- a/sys/compat/linuxkpi/common/include/linux/cc_platform.h
+++ b/sys/compat/linuxkpi/common/include/linux/cc_platform.h
@@ -3,6 +3,9 @@
 #ifndef _LINUXKPI_LINUX_CC_PLATFORM_H_
 #define	_LINUXKPI_LINUX_CC_PLATFORM_H_
 
+#include <linux/types.h>
+#include <linux/stddef.h>
+
 enum cc_attr {
 	CC_ATTR_MEM_ENCRYPT,
 };