diff --git a/osx/say.md b/osx/say.md
index 00d96b713a..cbfc8d2fd4 100644
--- a/osx/say.md
+++ b/osx/say.md
@@ -13,3 +13,7 @@
 - Create an AAC compressed audio file with the spoken text
 
 `say -o {{filename.m4a}} "Everyone loves iTunes"`
+
+- List the available voices
+
+`say -v '?'`