diff --git a/courses/tspl/2019/tspl2019.md b/courses/tspl/2019/tspl2019.md
index 93ffb328..07471588 100644
--- a/courses/tspl/2019/tspl2019.md
+++ b/courses/tspl/2019/tspl2019.md
@@ -122,7 +122,7 @@ For instructions on how to set up Agda for PLFA see [Getting Started]({{ site.ba
 * [Assignment 1]({{ site.baseurl }}/TSPL/2019/Assignment1/) cw1 due 4pm Thursday 3 October (Week 3)
 * [Assignment 2]({{ site.baseurl }}/TSPL/2019/Assignment2/) cw2 due 4pm Thursday 17 October (Week 5)
 * [Assignment 3]({{ site.baseurl }}/TSPL/2019/Assignment3/) cw3 due 4pm Thursday 31 October (Week 7)
-* Assignment 4 <!-- [Assignment 4]({{ site.baseurl }}/TSPL/2019/Assignment4/) --> cw4 due 4pm Thursday 14 November (Week 9)
+* [Assignment 4]({{ site.baseurl }}/TSPL/2019/Assignment4/) cw4 due 4pm Thursday 14 November (Week 9)
 * Assignment 5 <!-- [Assignment 5]({{ site.baseurl }}/courses/tspl/2010/Mock1.pdf) --> cw5 due 4pm Thursday 21 November (Week 10)
   <!-- <br />
   Use file [Exam]({{ site.baseurl }}/TSPL/2018/Exam/). Despite the rubric, do **all three questions**. -->