diff --git a/security/selinux/include/flask.h b/security/selinux/include/flask.h
index eb9f508..e4c8535 100644
--- a/security/selinux/include/flask.h
+++ b/security/selinux/include/flask.h
@@ -60,6 +60,7 @@
 #define SECCLASS_NSCD                                    53
 #define SECCLASS_ASSOCIATION                             54
 #define SECCLASS_NETLINK_KOBJECT_UEVENT_SOCKET           55
+#define SECCLASS_APPLETALK_SOCKET                        56
 
 /*
  * Security identifier indices for initial entities