diff --git a/appveyor.yml b/appveyor.yml
index 542a46299..d79fc5c3c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: {build}
+version: ci.{build}
 image: Visual Studio 2015
 clone_depth: 1
 init: