diff --git a/appveyor.yml b/appveyor.yml
index 3b7237e..c12161f 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 environment:
   semver: "1.3.0"
-version: '{semver}+{build}'
+version: '$(semver)+{build}'
 image: Visual Studio 2019
 # branches:
 #  only: