diff --git a/appveyor.yml b/appveyor.yml
index f44c57a5..79047842 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,7 @@ os: Visual Studio 2015
 version: 1.0.0.{build}
 
 configuration:
-- Release
+- Debug
 
 platform: Any CPU