diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 3a280edb5..987b4c008 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2015-11-18  Corinna Vinschen  <corinna@vinschen.de>
+
+	* sec_acl.cc (get_posix_access): Fix class_perm in !new_style case.
+
 2015-11-18  Corinna Vinschen  <corinna@vinschen.de>
 
 	Reapply POSIX ACL changes.
diff --git a/winsup/cygwin/sec_acl.cc b/winsup/cygwin/sec_acl.cc
index 7d97fca02..e52cdb711 100644
--- a/winsup/cygwin/sec_acl.cc
+++ b/winsup/cygwin/sec_acl.cc
@@ -880,7 +880,8 @@ get_posix_access (PSECURITY_DESCRIPTOR psd,
     {
       lacl[pos].a_type = CLASS_OBJ;
       lacl[pos].a_id = ILLEGAL_GID;
-      lacl[pos].a_perm = class_perm | lacl[1].a_perm;
+      class_perm |= lacl[1].a_perm;
+      lacl[pos].a_perm = class_perm;
     }
   /* For ptys, fake a mask if the admins group is neither owner nor group.
      In that case we have an extra ACE for the admins group, and we need a