diff --git a/Slides/Module 04 Code Level Design.pdf b/Slides/Module 04 Code Level Design.pdf
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diff --git a/Slides/Module 04 Code Level Design.pptx b/Slides/Module 04 Code Level Design.pptx
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diff --git a/lectures/l4.md b/lectures/l4.md
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--- a/lectures/l4.md
+++ b/lectures/l4.md
@@ -31,7 +31,7 @@ In this lecture, you will learn to:
 {% include lesson.html %}
 
 ### Activity
-* Traffic Light Activity: ([Handout]({{site.baseurl}}{% link Activities/Module04 Activity.md %})) ([Starter Code]({{site.baseurl}}{% link Activities/module04-traffic-light-activity.zip %}))
+* Traffic Light Activity: ([Handout]({{site.baseurl}}{% link Activities/Module04 Activity.md %}))
 
 ### Resources
 * [Code Style Policy for this class]({{site.baseurl}}{% link style.md %})