diff --git a/README.md b/README.md
index 59aca5b..d15304f 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ https://github.com/MHeironimus/ArduinoJoystickLibrary
 
 ### Code
 This code supports Atari, SMS, NES, SNES and Genesis (3 and 6 button) controllers. Select your controller by commenting and uncommenting stuff from beginning of source code and give your IO-pin numbers.
-Every one uses same button numbering, so if you make multiple adapters for different controllers, you have to teach buttons to emulator/game (or whole emulation system like RetrOrangePi) only once.
+Every one uses same button numbering, so if you make multiple adapters for different controllers, you have to teach buttons to emulator/game (or whole emulation system like RetroPie or RetrOrangePi) only once.
 
 #### Konami code
 You can also enable or disable Konami-code-shortcut. For now it works only with Genesis 6-button controller (X+Y+Z+UP (or DOWN)) and SNES-controller (X+Y+R1+UP (or DOWN)). Some games demands that not other buttons are pressed before code and that's why only last pressed button can be button which have some function in emulator.