diff --git a/net-p2p/ethash/files/patch-lib_ethash_endianness.hpp b/net-p2p/ethash/files/patch-lib_ethash_endianness.hpp
index 4a7546acd522..f6d6375e49b3 100644
--- a/net-p2p/ethash/files/patch-lib_ethash_endianness.hpp
+++ b/net-p2p/ethash/files/patch-lib_ethash_endianness.hpp
@@ -1,11 +1,19 @@
---- lib/ethash/endianness.hpp.orig	2021-11-09 08:29:42 UTC
+--- lib/ethash/endianness.hpp.orig	2023-04-03 20:30:42 UTC
 +++ lib/ethash/endianness.hpp
-@@ -24,7 +24,7 @@
+@@ -24,13 +24,15 @@
  #endif
  #endif
  
 -#if __has_builtin(__builtin_bswap64) || defined(__GNUC__)
 +#if (__has_builtin(__builtin_bswap64) || defined(__GNUC__)) && !defined(__FreeBSD__)
  #define bswap32 __builtin_bswap32
  #define bswap64 __builtin_bswap64
  #elif defined(_MSC_VER)
+ #include <stdlib.h>
+ #define bswap32 _byteswap_ulong
+ #define bswap64 _byteswap_uint64
++#elif defined(__FreeBSD__)
++#include <sys/endian.h>
+ #endif
+ 
+ namespace ethash