diff --git a/libc/kernel/uapi/asm-generic/ipcbuf.h b/libc/kernel/uapi/asm-generic/ipcbuf.h
index c1da1de..cc7274e 100644
--- a/libc/kernel/uapi/asm-generic/ipcbuf.h
+++ b/libc/kernel/uapi/asm-generic/ipcbuf.h
@@ -31,8 +31,8 @@
  unsigned short seq;
  unsigned short __pad2;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- unsigned long __unused1;
- unsigned long __unused2;
+ __kernel_ulong_t __unused1;
+ __kernel_ulong_t __unused2;
 };
 #endif
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */