diff --git a/appveyor.yml b/appveyor.yml
index 204ed14c..f91bf99c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -13,4 +13,4 @@ build:
   project: MQTTnet.sln
   verbosity: minimal
 test_script:
-- cmd: vstest.console /logger:Appveyor "%APPVEYOR_BUILD_FOLDER%\Tests\MQTTnet.Core.Tests\bin\Release\netcoreapp2.0\MQTTnet.Core.Tests.dll"
+- cmd: vstest.console /logger:Appveyor "%APPVEYOR_BUILD_FOLDER%\Tests\MQTTnet.Core.Tests\bin\Release\netcoreapp2.0\MQTTnet.Core.Tests.dll" /ListDiscoverers