diff --git a/appveyor.yml b/appveyor.yml
index ea3729e..b045b67 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -24,10 +24,10 @@ environment:
   matrix:
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       TOOLSET: msvc-10.0
-      ADDRMD: 32,64
+      ADDRMD: 32
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       TOOLSET: msvc-11.0
-      ADDRMD: 32,64
+      ADDRMD: 32
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       TOOLSET: msvc-12.0
       ADDRMD: 32,64