diff --git a/libc/kernel/uapi/linux/mempolicy.h b/libc/kernel/uapi/linux/mempolicy.h
index 4f8c02f..f92970f 100644
--- a/libc/kernel/uapi/linux/mempolicy.h
+++ b/libc/kernel/uapi/linux/mempolicy.h
@@ -25,6 +25,7 @@
   MPOL_BIND,
   MPOL_INTERLEAVE,
   MPOL_LOCAL,
+  MPOL_PREFERRED_MANY,
   MPOL_MAX,
 };
 #define MPOL_F_STATIC_NODES (1 << 15)