diff --git a/libc/kernel/uapi/linux/openvswitch.h b/libc/kernel/uapi/linux/openvswitch.h
index b043dd8..7db5cd5 100644
--- a/libc/kernel/uapi/linux/openvswitch.h
+++ b/libc/kernel/uapi/linux/openvswitch.h
@@ -516,4 +516,5 @@
   OVS_DEC_TTL_ATTR_ACTION,
   __OVS_DEC_TTL_ATTR_MAX
 };
+#define OVS_DEC_TTL_ATTR_MAX (__OVS_DEC_TTL_ATTR_MAX - 1)
 #endif