diff --git a/sortix/include/sortix/kernel/crc32.h b/sortix/include/sortix/kernel/crc32.h
index aa063773..f4a6f0a5 100644
--- a/sortix/include/sortix/kernel/crc32.h
+++ b/sortix/include/sortix/kernel/crc32.h
@@ -28,6 +28,9 @@
 #ifndef SORTIX_CRC32_H
 #define SORTIX_CRC32_H
 
+#include <stddef.h>
+#include <stdint.h>
+
 namespace Sortix {
 namespace CRC32 {