diff --git a/pesign-test-app.spec b/pesign-test-app.spec
index 1a73d92..fdae9cd 100644
--- a/pesign-test-app.spec
+++ b/pesign-test-app.spec
@@ -50,7 +50,7 @@ getfacl /run/pesign/socket || :
 
 cp %{name}-unsigned.efi %{name}-unsigned.0.efi
 %pesign -s -i %{name}-unsigned.0.efi -o %{name}-signed.0.efi
-%define pe_signing_cert /CN=fwupd-signer
+%define pe_signing_cert 'OpenSC Card (Fedora Signer):fwupd-signer'
 cp %{name}-unsigned.efi %{name}-unsigned.1.efi
 %pesign -s -i %{name}-unsigned.1.efi -o %{name}-signed.1.efi -n "/CN=fwupd-signer"