diff --git a/README.md b/README.md
index 460f8d0..d34482c 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Features (planned/done):
 - [x] CW out (straight key input on TRX)
 - [x] Setting speed with rotary knob
 - [x] Display (TM1637) showing keyer mode and speed
-- [ ] Change keying mode via button
+- [x] Change keying mode via button
 - [ ] Logging and Contest Program Interfacing (WinKeyer)
 - [ ] Support for three text memory buttons
 - [ ] ~~Line out (sine wave) -> long term; not that easy~~