diff --git a/strings.1 b/strings.1
index c930089..47727df 100644
--- a/strings.1
+++ b/strings.1
@@ -11,3 +11,7 @@
 .Nm
 prints the printable character sequences that are at least 6 characters
 long.  If no files are given then it uses stdin.
+.Sh STANDARDS
+.Nm
+mirrors the semantics of Plan9
+.Xr strings 1 .