diff --git a/.build.yml b/.build.yml
index d2f8607..4ab32ad 100644
--- a/.build.yml
+++ b/.build.yml
@@ -14,6 +14,7 @@ tasks:
   - build: |
       cd pmrpc
       npm run build
+      ls -1 lib
   - test: |
       cd pmrpc
       npm run test
\ No newline at end of file