diff --git a/README.md b/README.md
index 396652917a6659c4151861121a0fc7954ab04c2f..0b86a7d10d2252770ce5fa8e40f58327fa6dbd42 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@
 - projects, intros
     - Marty: shields
         - http://news.mit.edu/2020/face-shield-ppe-manufacture-covid-19-0331
+    - Matt: masks
     - Lydia: modeling, transmission
         - https://lbourouiba.mit.edu/MITBourouibaCOVID19
     - Michael: fabrics, testing