diff --git a/appveyor.yml b/appveyor.yml
index e60efad54..c28471a8b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,6 +17,8 @@ test_script:
   - npm --version
   - npm run lint
   - npm run test
+  # tmp fix due to windows npm5 issue
+  - cd tests_apps/test_app/extensions/embark-service && npm install
   - npm run testdapp_1
   - npm run testdapp_2