diff --git a/plan9port/index.html b/plan9port/index.html
index 2cc944ed..b46c8b59 100644
--- a/plan9port/index.html
+++ b/plan9port/index.html
@@ -51,7 +51,7 @@
       <tr><td><td>
         Linux <font size=-1>(x86, x86-64, PowerPC, and ARM)</font>,
         FreeBSD <font size=-1>(x86, x86-64)</font>,
-        Mac OS X <font size=-1>(x86, x86-64, and Power PC)</font>,
+        macOS <font size=-1>(x86, x86-64, Power PC, and ARM)</font>,
         NetBSD <font size=-1>(x86 and PowerPC)</font>,
         OpenBSD <font size=-1>(x86 and PowerPC)</font>,
         SunOS <font size=-1>(x86-64 and Sparc)</font>,