diff --git a/appveyor.yml b/appveyor.yml
index e5c964a..7747630 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -37,7 +37,7 @@ test_script:
   # Output useful info for debugging.
   - node --version
   - npm --version
-  - cmd: npm t
+  - cmd: grunt test
 
 os:
   - Default Azure