diff --git a/lib/libsys/pathconf.2.orig b/lib/libsys/pathconf.2
--- a/lib/libsys/pathconf.2.orig
+++ b/lib/libsys/pathconf.2
@@ -25,7 +25,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd May 3, 2025
+.Dd July 5, 2025
 .Dt PATHCONF 2
 .Os
 .Sh NAME
@@ -179,6 +179,9 @@
 Return 1 if named attributes are enabled for the file system, otherwise 0.
 .It Li _PC_HAS_NAMEDATTR
 Return 1 if one or more named attributes exist for the file, otherwise 0.
+.It Li _PC_HAS_HIDDENSYSTEM
+Return 1 if both UF_HIDDEN and UF_SYSTEM va_flags are supported for the file,
+otherwise 0.
 .El
 .Sh RETURN VALUES
 If the call to