diff --git a/frontend/packages/shared/package.json b/frontend/packages/shared/package.json
index 333bcd63..d5d46ded 100644
--- a/frontend/packages/shared/package.json
+++ b/frontend/packages/shared/package.json
@@ -17,7 +17,8 @@
     "./chrome.css": "./src/chrome.css",
     "./forms.js": "./src/forms.js",
     "./dom.js": "./src/dom.js",
-    "./modal.js": "./src/modal.js"
+    "./modal.js": "./src/modal.js",
+    "./shadow-css.js": "./src/shadow-css.js"
   },
   "files": [
     "src/"