diff --git a/.woodpecker/build-deploy.yaml b/.woodpecker/build-deploy.yaml
index f2b7e78..94f048d 100644
--- a/.woodpecker/build-deploy.yaml
+++ b/.woodpecker/build-deploy.yaml
@@ -16,6 +16,7 @@ steps:
 
       - |
         nix-shell -p s3cmd --command 's3cmd \
+          --guess-mime-type \
           --host=static-sites.hoki-porgy.ts.net:9000 \
           --host-bucket=static-sites.hoki-porgy.ts.net:9000 \
           --no-ssl \