diff --git a/.appveyor.yml b/.appveyor.yml
index 6e9930a..56db1bf 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -9,7 +9,7 @@ environment:
     - nodejs_version: 5
     - nodejs_version: 4
 install:
-  - ps: Install-Product node $env:nodejs_version
+  - ps: Install-Product node $env:nodejs_version x64
   - set CI=true
   - npm i -g npm@latest
   - set PATH=%APPDATA%\npm;%PATH%