diff --git a/Tutorial.md b/Tutorial.md
index 27cb5a0..c0a0c20 100644
--- a/Tutorial.md
+++ b/Tutorial.md
@@ -14,7 +14,7 @@ The rest of this tutorial will assume that the CATCH root folder is available un
 
 # Writing tests
 
-Let's start with a really simple example. Say you have written a function to calculate factorials and now you want to test it. To keep things simple we'll put everything in a single file.
+Let's start with a really simple example. Say you have written a function to calculate factorials and now you want to test it (let's leave aside TDD for now). To keep things simple we'll put everything in a single file.
 
 ```c++
     #include "catch_with_main.hpp" // This brings in a default implementation for main()