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-rw-r--r--ext/socket/unixsocket.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/socket/unixsocket.c b/ext/socket/unixsocket.c
index c30dbb7956..1742496e84 100644
--- a/ext/socket/unixsocket.c
+++ b/ext/socket/unixsocket.c
@@ -163,7 +163,7 @@ unix_recvfrom(int argc, VALUE *argv, VALUE sock)
#define FD_PASSING_BY_MSG_CONTROL 0
#endif
-#if defined(HAVE_ST_MSG_ACCRIGHTS)
+#if defined(HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS)
#define FD_PASSING_BY_MSG_ACCRIGHTS 1
#else
#define FD_PASSING_BY_MSG_ACCRIGHTS 0