diff --git a/homework/hw04.md b/homework/hw04.md
index 1c1595b..a8dc42b 100644
--- a/homework/hw04.md
+++ b/homework/hw04.md
@@ -9,7 +9,7 @@ $\lambda$-expression that your evaluator can evaluate.
 Your solution should follow Lecture 11, where I show how to create a 
 type constructor `Parser` 
 and make it into an instance of `Monad`.
-Create a module `Parser.hs` containing the code in Section~\ref{sec:parser}
+Create a module `Parser.hs` containing the code from [Parser module section](#parser-module)
 that you import into your solution.
 
 The parser should be implemented as a Haskell module called `Hw4`. 
@@ -30,7 +30,7 @@ import Hw3
 ```
 
 There are four imports. The first two necessary libraries so that the definitions from 
-Lecture 11 work. The third is the module `Parser` whose code is in Section~\ref{sec:parser}. 
+Lecture 11 work. The third is the module `Parser` whose code is [here](#parser-module). 
 The last import is your previous homework assignment. So be sure that you have
 your `Hw3.hs`
 and `Parser.hs`