1 files changed, 1 insertions, 1 deletions
diff --git a/xmlsecurity/source/component/documentdigitalsignatures.cxx b/xmlsecurity/source/component/documentdigitalsignatures.cxx
index ac9f25ce41c9..10e099dbf432 100644
--- a/xmlsecurity/source/component/documentdigitalsignatures.cxx
+++ b/xmlsecurity/source/component/documentdigitalsignatures.cxx
@@ -569,7 +569,7 @@ DocumentDigitalSignatures::ImplVerifySignatures(
             // collide, or PGPKeyID format might change - can't we
             // keep the xCert itself in rInfo?
             rSigInfo.Signer = xGpgSecEnv->getCertificate(
-                rInfo.ouGpgKeyID, xmlsecurity::numericStringToBigInteger(""));
+                rInfo.ouGpgKeyID, xmlsecurity::numericStringToBigInteger(u""));
             rSigInfo.CertificateStatus = xGpgSecEnv->verifyCertificate(
                 rSigInfo.Signer, Sequence<Reference<css::security::XCertificate>>());
         }