diff --git a/appveyor.yml b/appveyor.yml
index 6f2e978..44d95a8 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,5 @@
 version: 1.0.{build}
+configuration: Release
 before_build:
 - nuget restore
 build: