diff --git a/.github/workflows/msbuild48.yml b/.github/workflows/msbuild48.yml
index 286902a20d..1604a1a3b8 100644
--- a/.github/workflows/msbuild48.yml
+++ b/.github/workflows/msbuild48.yml
@@ -24,5 +24,5 @@ jobs:
       with:
           name: OpenSimLastBuild
           draft: true
-          files: LastBuild.tgz
+          files: LastBuild.zip