diff --git a/appveyor.yml b/appveyor.yml
index 0b5cd91..c88dd59 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -15,8 +15,8 @@ install:
   - vcpkg install capnproto
   - cd %APPVEYOR_BUILD_FOLDER%
 init:
-  - cmd: set semver='%major%.%minor%.%patch%'
-  - cmd: set msasmver='%major%.%minor%.{build}.%patch%'
+  - cmd: set semver=%major%.%minor%.%patch%
+  - cmd: set msasmver=%major%.%minor%.%build%.%patch%
   # Good practise, because Windows line endings are different from Unix/Linux ones
   - cmd: git config --global core.autocrlf true
 dotnet_csproj: