diff --git a/lib/libc/sys/open.2 b/lib/libc/sys/open.2
index 383dd58b2a3..aac3ef1318f 100644
--- a/lib/libc/sys/open.2
+++ b/lib/libc/sys/open.2
@@ -323,7 +323,7 @@ by the descriptor at the time of the call.
 .Pp
 .Dv O_PATH
 returns a file descriptor that can be used as a directory file descriptor for
-.Xr openat 2
+.Fn openat
 and other system calls taking a file descriptor argument, like
 .Xr fstatat 2
 and others.