diff --git a/README.md b/README.md
index 5a6320b7e9bf4d71b24e7170a37b4dee9e7616c2..6483428c3ab0105968ebba63a70cfc019e4004ce 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@ https://gitlab.cba.mit.edu/pub/coronavirus
 - https://gitlab.cba.mit.edu/zfredin/quickshield
 - https://gitlab.cba.mit.edu/alfonso/fabshield
 - https://gitlab.cba.mit.edu/alfonso/covid-isolation-box
+- https://gitlab.cba.mit.edu/zfredin/negative-pressure-covid-box
 
 ### 10:30A EDT Tue May 18