diff --git a/appveyor.yml b/appveyor.yml
index 2275c1322c..a2d85c2df3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,4 +11,6 @@ build_script:
   - build.cmd --quiet verify
 clone_depth: 1
 test: off
-deploy: off
\ No newline at end of file
+deploy: off
+# Required for dotnet-test to work
+os: Visual Studio 2015