diff --git a/ext/sockets/multicast.c b/ext/sockets/multicast.c
index 25203c0fbcca..d861d2f145dd 100644
--- a/ext/sockets/multicast.c
+++ b/ext/sockets/multicast.c
@@ -718,7 +718,7 @@ int php_if_index_to_addr4(unsigned if_index, php_socket *php_sock, struct in_add
 		return SUCCESS;
 	}
 
-#if !defined(ifr_ifindex) && defined(ifr_index)
+#if !defined(ifr_ifindex) && (defined(ifr_index) || defined(__HAIKU__))
 #define ifr_ifindex ifr_index
 #endif
 
diff --git a/ext/sockets/sockets.c b/ext/sockets/sockets.c
index 16ad3e8013a4..7976c9cc758a 100644
--- a/ext/sockets/sockets.c
+++ b/ext/sockets/sockets.c
@@ -472,7 +472,9 @@ static PHP_MINIT_FUNCTION(sockets)
 	REGISTER_LONG_CONSTANT("SOCK_DGRAM",	SOCK_DGRAM,		CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("SOCK_RAW",		SOCK_RAW,		CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("SOCK_SEQPACKET",SOCK_SEQPACKET, CONST_CS | CONST_PERSISTENT);
+#ifdef SOCK_RDM
 	REGISTER_LONG_CONSTANT("SOCK_RDM",		SOCK_RDM,		CONST_CS | CONST_PERSISTENT);
+#endif
 
 	REGISTER_LONG_CONSTANT("MSG_OOB",		MSG_OOB,		CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("MSG_WAITALL",	MSG_WAITALL,	CONST_CS | CONST_PERSISTENT);