diff --git a/README.md b/README.md
index 22d723e..b4f124a 100644
--- a/README.md
+++ b/README.md
@@ -155,6 +155,7 @@ Pyembroidery will read:
 * .tbf
 * .u01
 * .xxx
+* .zhs
 * .zxy
 * .gcode