diff --git a/.gitattributes b/.gitattributes
index 7f4f023b4..622b6f29d 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,2 @@
 *.patch linguist-language=C++
-.github/workflows/object/*.tar filter=lfs diff=lfs merge=lfs -text
+.github/workflows/object/*.tar.gz filter=lfs diff=lfs merge=lfs -text
diff --git a/build/winsign/sign.ps1 b/build/winsign/sign.ps1
index b80b6df55..62e84fa8a 100644
--- a/build/winsign/sign.ps1
+++ b/build/winsign/sign.ps1
@@ -73,7 +73,7 @@ function SignAndPackage($name) {
     }
 
     echo "Invoking tar for $name"
-    tar -cvf .\.github\workflows\object\windows-x64-signed-$name.tar -C .\windsign-temp\windows-x64-signed-$name .
+    tar -czvf .\.github\workflows\object\windows-x64-signed-$name.tar.gz -C .\windsign-temp\windows-x64-signed-$name .
 
     echo "Finished $name"
 }