diff --git a/.appveyor.yml b/.appveyor.yml
index 386ef81d..c1806315 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,9 +1,6 @@
 version: '{build}'
 os: Visual Studio 2015
 
-configuration:
-- Debug
-
 cache:
 - vcpkg -> .appveyor.yml
 
@@ -15,6 +12,11 @@ configuration:
   - Debug
   - Release
 
+environment:
+  matrix:
+  - STATIC: OFF
+  - STATIC: ON
+
 init: []
 
 install: