diff --git a/appveyor.yml b/appveyor.yml
index c4be620b..03078483 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -20,7 +20,7 @@ test_script:
   # run tests
   - npm run test:node
   - npm run test:chrome
-  - node_modules\protractor\bin\webdriver-manager update --gecko false --versions.chrome 2.37
+  - ./node_modules/protractor/bin/webdriver-manager update --gecko false --version.chrome 2.37
   - npm run test:protractor -- --directConnect
 
 # Don't actually build.