diff --git a/appveyor.yml b/appveyor.yml
index 54c0ab7..f4c54ef 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,7 @@
+image: Visual Studio 2017
+
 build_script:
 - ps: >-
     cd win
 
     .\build.bat
-