diff --git a/appveyor.yml b/appveyor.yml
index fe860688b..90f5d8e62 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -24,13 +24,9 @@ install:
 build_script:
 - cmd: build.cmd
 
-# run the tests in after build instead of tests to prevent appveryor trying to do its own thing and breaking
-after_build :
-- dotnet test tests\ImageSharp.Tests\ImageSharp.Tests.csproj --configuration release
+test_script:
 - tests\CodeCoverage\CodeCoverage.cmd
 
-test: off
-
 artifacts:
 - path: artifacts\bin\ImageSharp\**\*.nupkg
 
diff --git a/tests/CodeCoverage/CodeCoverage.cmd b/tests/CodeCoverage/CodeCoverage.cmd
index 8ffa2000f..b9d7ac0b1 100644
--- a/tests/CodeCoverage/CodeCoverage.cmd
+++ b/tests/CodeCoverage/CodeCoverage.cmd
@@ -12,7 +12,7 @@ cd ..
 cd ..
 
 rem The -threshold options prevents this taking ages...
-tests\CodeCoverage\OpenCover.4.6.519\tools\OpenCover.Console.exe -target:"dotnet.exe" -targetargs:"test tests\ImageSharp.Tests\ImageSharp.Tests.csproj -c Release -f net451" -threshold:10 -register:user -filter:"+[ImageSharp*]*" -excludebyattribute:*.ExcludeFromCodeCoverage* -hideskipped:All -returntargetcode -output:.\ImageSharp.Coverage.xml
+tests\CodeCoverage\OpenCover.4.6.519\tools\OpenCover.Console.exe -target:"dotnet.exe" -targetargs:"test tests\ImageSharp.Tests\ImageSharp.Tests.csproj -c Release -f net451 --RuntimeIdentifier=win7-x64" -threshold:10 -register:user -filter:"+[ImageSharp*]*" -excludebyattribute:*.ExcludeFromCodeCoverage* -hideskipped:All -returntargetcode -output:.\ImageSharp.Coverage.xml
 
 if %errorlevel% neq 0 exit /b %errorlevel%