diff --git a/package.json b/package.json
index a14dcbc1af..789e4ecbdf 100644
--- a/package.json
+++ b/package.json
@@ -149,6 +149,7 @@
   "files": [
     "dist/esm",
     "dist/umd",
+    "src/*.ts",
     "src/lib/**/*.ts",
     "src/proto/**/*.ts",
     "!**/*.spec.*",