diff --git a/book/src/ch2/index.md b/book/src/ch2/index.md
index 6067849..c92c8dc 100644
--- a/book/src/ch2/index.md
+++ b/book/src/ch2/index.md
@@ -1,7 +1,7 @@
 # Ch 2: User Input
 
 It's all well and good to draw three pixels, but they don't do anything yet. We
-want them to to something, and for that we need to get some input from the user.
+want them to do something, and for that we need to get some input from the user.
 
 The GBA, as I'm sure you know, has an arrow pad, A and B, L and R, Start and
 Select. That's a little more than the NES/GB/CGB had, and a little less than the