diff --git a/.github/workflows/build_win.yml b/.github/workflows/build_win.yml
index bc6ba768f8..8c11be8537 100644
--- a/.github/workflows/build_win.yml
+++ b/.github/workflows/build_win.yml
@@ -124,4 +124,4 @@ jobs:
           AWS_MAX_ATTEMPTS: 3
         run: |
           dir "$env:USERPROFILE\output"
-          aws s3 cp "$env:USERPROFILE\output" s3://ifcopenshell-builds/ --recursive
+          aws s3 cp "$env:USERPROFILE\output" s3://ifcopenshell-builds/ --recursive --debug