diff --git a/package.json b/package.json
index 83edffed..6750b5c6 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "src/common/modules.js",
     "src/common/http.js",
     "src/common/crypto-js.js",
+    "src/common/observer.js",
     "src/apps",
     "src/styles"
   ],