diff --git a/README.md b/README.md
index 8297941..b94a806 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,8 @@ the symbol to resize.
 
 #### How do I adjust the mouse sensitivity?
 
-Tweak `X_SENSITIVITY` and `Y_SENSITIVITY` in `ponydos.asm`.
+Tweak `X_SENSITIVITY` and `Y_SENSITIVITY` in `ponydos.asm`. Lower values mean
+higher sensitivity.
 
 #### I started an application and it doesn't have a title bar, how do I exit it?