diff --git a/sys/man/1/xargs b/sys/man/1/xargs
index 78638d65b..a5d439129 100644
--- a/sys/man/1/xargs
+++ b/sys/man/1/xargs
@@ -42,3 +42,6 @@ seq 1 9 | xargs -n 3 echo
 .LP
 .SH SOURCE
 .B /sys/src/cmd/xargs.c
+.SH HISTORY
+.I Xargs
+was rewritten from scratch for 9front (August, 2011).