diff --git a/packages/ui/package.json b/packages/ui/package.json
index 3cfc0d362..b5bf2e888 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -41,8 +41,12 @@
     "./package.json": "./package.json",
     "./css/styles.css": "./css/styles.css",
     "./css/compact_styles.css": "./css/compact_styles.css",
-    "./css/styles.scss": "./css/styles.scss",
-    "./css/compact_styles.scss": "./css/compact_styles.scss"
+    "./css/styles.scss": {
+      "sass": "./css/styles.scss"
+    },
+    "./css/compact_styles.scss": {
+      "sass": "./css/compact_styles.scss"
+    }
   },
   "main": "./cjs/index.js",
   "module": "./esm/index.js",