diff --git a/schedule.md b/schedule.md
index 3a228ee6890015ddf82c56a7d645a6a1513883ae..a099e9ab7c43c2bb651893e63b0ea6fa2f9bfeec 100644
--- a/schedule.md
+++ b/schedule.md
@@ -32,7 +32,7 @@ warning: draft
 : How would you implement this in a meeting you run?
 
 {: .activity} 7:10-7:50 Skill Goal: Analyze a topic from a disability justice perspective
-: **In class Exercise** Introduction to topic; Group discussion of masking from a disability justice perpective 
+: **In class Exercise** Introduction to topic; Group discussion of masking from a disability justice perpective [one-way masking not enough](https://www.fastcompany.com/90790893/im-a-chronically-ill-student-and-one-way-masking-isnt-enough)
 {% enddetails %}
 
 {: .break} 7:50-8:00