diff --git a/appveyor.yml b/appveyor.yml
index a01ce9e3..9a533d84 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-os: Visual Studio 2015
+os: Previous Visual Studio 2015
 version: "{build}"
 build: off
 platform: x64