diff --git a/appveyor.yml b/appveyor.yml
index 08a9d7d5..c4aab94e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,9 +1,10 @@
 version: '{build}'
-os: Visual Studio 2015 CTP
+os: Visual Studio 2015 Preview
+init: []
+install: []
 build_script:
 - set PATH=C:\Program Files (x86)\MSBuild\14.0\Bin;%PATH%
-- cmake .
-build:
-  verbosity: detailed
+- cmake
+- msbuild json.sln
 test_script:
 - json_unit.exe