diff --git a/config/etc/readme.md b/config/etc/readme.md
index 6479d12..7fe9555 100644
--- a/config/etc/readme.md
+++ b/config/etc/readme.md
@@ -53,6 +53,7 @@ and new users/admins.
 
 binding|function
 ---|---
+ctrl-s/ctrl-S|save current file
 alt-c/alt-C|copy selected text
 alt-x/alt-X|cut selected text
 alt-v/alt-V|paste text on clipboard