diff --git a/appveyor.yml b/appveyor.yml
index c4aab94e..8e335af3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,7 +4,7 @@ init: []
 install: []
 build_script:
 - set PATH=C:\Program Files (x86)\MSBuild\14.0\Bin;%PATH%
-- cmake
+- cmake .
 - msbuild json.sln
 test_script:
 - json_unit.exe