diff --git a/appveyor.yml b/appveyor.yml
index 2249a0a..4483bce 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -15,7 +15,11 @@ branches:
 
 environment:
   matrix:
-    - TOOLSET: msvc-9.0,msvc-10.0,msvc-11.0,msvc-12.0
+    - TOOLSET: msvc-9.0,msvc-10.0,msvc-11.0
+      ADDRMD: 32
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - TOOLSET: msvc-12.0
+      ADDRMD: 32,64
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
     - TOOLSET: msvc-14.0
       ADDRMD: 32,64