diff --git a/appveyor.yml b/appveyor.yml
index 1f0a6ea..48be467 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,8 +1,9 @@
 # Test against the latest version of this Node.js version
 environment:
-  nodejs_version: "6"
-  nodejs_version: "8"
-  nodejs_version: "10"
+  matrix:
+    - nodejs_version: "6"
+    - nodejs_version: "8"
+    - nodejs_version: "10"
 
 # Install scripts. (runs after repo cloning)
 install: