diff --git a/appveyor.yml b/appveyor.yml
index 672212c..bfa6af4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -20,11 +20,11 @@ environment:
       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
       CXXSTD: 14,17
       ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-      TOOLSET: msvc-14.2,clang-win
+      TOOLSET: msvc-14.2
       CXXSTD: 14,17
       ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015