diff --git a/README.md b/README.md
index 704821a..93dde8b 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ This is how it looks like:
 
 ![TetrOS - Tetris in 512 byte boot sector](https://github.com/daniel-e/mbr_tetris/blob/master/tetros_tetris_screenshot.png)
 
-And this the complete machine code:
+And this is the complete machine code:
 
 ![TetrOS - Machine code](https://github.com/daniel-e/mbr_tetris/blob/master/code.png)