diff --git a/.forgejo/workflows/build-iso.yml b/.forgejo/workflows/build-iso.yml
index 3ae7836..0fe8b1d 100644
--- a/.forgejo/workflows/build-iso.yml
+++ b/.forgejo/workflows/build-iso.yml
@@ -48,8 +48,10 @@ jobs:
 
       - name: Upload ISO to Forgejo package registry
         run: |
+          RUSER="$(printf "%s" "${{ secrets.REGISTRY_USER }}" | tr -d " \r\n")"
+          RTOKEN="$(printf "%s" "${{ secrets.REGISTRY_TOKEN }}" | tr -d " \r\n")"
           ISO="${{ inputs.variant }}-${DATE_TAG}.iso"
-          curl --fail -u "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_TOKEN }}" \
+          curl --fail -u "${RUSER}:${RTOKEN}" \
             --upload-file "$ISO" \
             "https://${REGISTRY_HOST}/api/packages/${OWNER}/generic/kamos-iso/${DATE_TAG}/${ISO}"
           echo "ISO available at: https://${REGISTRY_HOST}/${OWNER}/-/packages/generic/kamos-iso/${DATE_TAG}"