diff --git a/appveyor.yml b/appveyor.yml
index 6c1b13a..1b5f53f 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,11 +18,11 @@ environment:
       TOOLSET: msvc-9.0,msvc-10.0,msvc-11.0
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      ADDRMD: 32,64
       TOOLSET: msvc-12.0,msvc-14.0
+      ADDRMD: 32,64
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      TOOLSET: msvc-14.1
+      TOOLSET: msvc-14.1,clang-win
       ADDRMD: 32,64
       CXXSTD: 14,17