diff --git a/ext/sockets/sockets.c b/ext/sockets/sockets.c
index 5b5525f6223ee..d6d73545026ec 100644
--- a/ext/sockets/sockets.c
+++ b/ext/sockets/sockets.c
@@ -846,8 +846,6 @@ static PHP_MINIT_FUNCTION(sockets)
 #if HAVE_AI_IDN
 	REGISTER_LONG_CONSTANT("AI_IDN",			AI_IDN,				CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("AI_CANONIDN",		AI_CANONIDN,		CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("AI_IDN_ALLOW_UNASSIGNED",		AI_IDN_ALLOW_UNASSIGNED, CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("AI_IDN_USE_STD3_ASCII_RULES",	AI_IDN_USE_STD3_ASCII_RULES, CONST_CS | CONST_PERSISTENT);
 #endif
 #ifdef AI_NUMERICSERV
 	REGISTER_LONG_CONSTANT("AI_NUMERICSERV",	AI_NUMERICSERV,		CONST_CS | CONST_PERSISTENT);