diff --git a/appveyor.yml b/appveyor.yml
index 703d90e..6c6e120 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -27,7 +27,7 @@ environment:
   VERSION_SIMPLE: '{version}'
   VERSION_INFORMATIONAL: '{version}'
   VERSION_SUFFIX: '-preview-$(APPVEYOR_BUILD_NUMBER)'
-  VERSION_SUFFIX_TAG: '-$(APPVEYOR_BUILD_NUMBER)'
+  VERSION_SUFFIX_TAG: '.$(APPVEYOR_BUILD_NUMBER)'
 
 init:
 - ps: |