diff --git a/lib/libc/sys/mkdir.2 b/lib/libc/sys/mkdir.2
index 4477758dec9..9e0e4459c4b 100644
--- a/lib/libc/sys/mkdir.2
+++ b/lib/libc/sys/mkdir.2
@@ -73,7 +73,9 @@ or an entire path name exceeded 1023 characters.
 .It Bq Er ENOENT
 A component of the path prefix does not exist.
 .It Bq Er EACCES
-Search or write permission is denied for a component of the path prefix.
+Search permission is denied for a component of the path prefix,
+or write permission is denied
+on the parent directory of the directory to be created.
 .It Bq Er ELOOP
 Too many symbolic links were encountered in translating the pathname.
 .It Bq Er EROFS