diff --git a/buildbot/buildbot_steps.sh b/buildbot/buildbot_steps.sh
index 9f97db5..e3f0098 100755
--- a/buildbot/buildbot_steps.sh
+++ b/buildbot/buildbot_steps.sh
@@ -231,6 +231,8 @@ function make_ipxe_efi() {
 
     make bin-x86_64-efi/ipxe.efi EMBED="${embed_file}" CERT="${signing_cert},${ca_cert}" TRUST="${ca_cert}" || return 2
     mv bin-x86_64-efi/ipxe.efi bin/
+    echo "\"${efi_key}\" \"${efi_cert}\""
+    ls -lah "${efi_key}" "${efi_cert}"
     sbsign --key ${efi_key} --cert ${efi_cert} --output bin/ipxe.efi bin/ipxe.efi
 
     cd "$curr"