diff --git a/README.md b/README.md
index 5b0f8d2..5eb0778 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # np-tetris
 
-`main.py`: tetris in `numpy`
+`main.py`: tetris in pure python + `numpy`
 `tetris.py`: tetris with `curses`
 `snake.py`: snake with `curses` and `numpy`