diff --git a/lecture/lec16.md b/lecture/lec16.md
index c045c9a..579e3e1 100644
--- a/lecture/lec16.md
+++ b/lecture/lec16.md
@@ -10,4 +10,4 @@ Presented by Alexander Strang
 
 - [Slides](https://docs.google.com/presentation/d/1gkpTDGzzVWyg3dh-phIK9ei1WX6U9ghgcSFvLS1f2Ew/edit?usp=sharing){:target="_blank"}
 - [Notes](https://drive.google.com/file/d/1GHSYs8-9NXCdGhHuJUlBPMiJDNT47nfL/view?usp=drive_link){:target="_blank"}
-- [Recording](https://bcourses.berkeley.edu/courses/1532439/pages/lecture-16-causal-inference-ii-randomized-experiments)
+- [Recording](https://bcourses.berkeley.edu/courses/1532439/pages/lecture-16-causal-inference-ii-randomized-experiments){:target="_blank"}