diff --git a/deps/c-ares_config/ares_build.h b/deps/c-ares_config/ares_build.h
index 1eddb24b..d957666b 100644
--- a/deps/c-ares_config/ares_build.h
+++ b/deps/c-ares_config/ares_build.h
@@ -34,23 +34,23 @@
 #define CARES_TYPEOF_ARES_SSIZE_T ssize_t
 #endif
 
-#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(_WIN32) && !defined(__OpenBSD__)
+#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(_WIN32) && !defined(__OpenBSD__) && !defined(__HAIKU__)
 #define GETSERVBYNAME_R_ARGS 6
 #define GETSERVBYPORT_R_ARGS 6
 #define HAVE_GETSERVBYNAME_R 1
 #define HAVE_GETSERVBYPORT_R 1
 #endif
 
-#if !defined(__APPLE__) && !defined(_WIN32) && !defined(__OpenBSD__)
+#if !defined(__APPLE__) && !defined(_WIN32) && !defined(__OpenBSD__) && !defined(__HAIKU__)
 #define HAVE_PIPE2 1
 #endif
 
-#if defined(__OpenBSD__)
+#if defined(__OpenBSD__) || defined(__HAIKU__)
 #define GETSERVBYNAME_R_ARGS 4
 #define GETSERVBYPORT_R_ARGS 4
 #endif
 
-#if !defined(__APPLE__) && !defined(_WIN32) && !defined(__OpenBSD__)
+#if !defined(__APPLE__) && !defined(_WIN32) && !defined(__OpenBSD__) && !defined(__HAIKU__)
 #define HAVE_MALLOC_H 1
 #define HAVE_EPOLL 1
 #define HAVE_SYS_EPOLL_H 1
@@ -86,7 +86,9 @@
 #define HAVE_GETENV 1
 #define HAVE_GETHOSTNAME 1
 #define HAVE_GETNAMEINFO 1
+#if !defined(__HAIKU__)
 #define HAVE_GETRANDOM 1
+#endif
 #define HAVE_GETTIMEOFDAY 1
 #define HAVE_IF_INDEXTONAME 1
 #define HAVE_IF_NAMETOINDEX 1