diff --git a/README.md b/README.md
index 3af82f5..d8cf7cc 100644
--- a/README.md
+++ b/README.md
@@ -20,11 +20,11 @@ pip install pygame
 ### With Linux/Unix
 
 ```bash
-pyinstaller --onefile --noconsole launcher.py --add-data "gamedata:gamedata" --icon icon.png
+pyinstaller --onefile --noconsole launcher.py --add-data "gamedata:gamedata" --icon=icon.ico
 ```
 
 ### With Windows
 
 ```bash
-pyinstaller --onefile --noconsole launcher.py --add-data "gamedata;gamedata" --icon icon.png
+pyinstaller --onefile --noconsole launcher.py --add-data "gamedata;gamedata" --icon=icon.ico
 ```
diff --git a/icon.ico b/icon.ico
new file mode 100644
index 0000000..0d63d14
Binary files /dev/null and b/icon.ico differ
diff --git a/icon.png b/icon.png
deleted file mode 100644
index 6f33bb9..0000000
Binary files a/icon.png and /dev/null differ