diff --git a/conform/data/sys/socket.h-data b/conform/data/sys/socket.h-data
index 7aee89f8b7..151ade5b92 100644
--- a/conform/data/sys/socket.h-data
+++ b/conform/data/sys/socket.h-data
@@ -116,4 +116,5 @@ allow ifra_*
 allow msg_*
 allow cmsg_*
 allow l_*
+allow SO*
 #endif