diff --git a/sort_certificate.py b/sort_certificate.py
index 413f39d..98c32dd 100755
--- a/sort_certificate.py
+++ b/sort_certificate.py
@@ -257,6 +257,14 @@ def order_x509(x509_objects, root_issuers):
             bundle.insert(0, x509_objects.pop(x509_objects.index(sibling[0])))
         else:
             # Lets complain
+            logging.error('Certificates remaining data\n\t%s',
+                          '\n\t'.join([f'Subject: {x.get_subject()},'
+                                       f' Issuer: {x.get_issuer()}'
+                                       for x in x509_objects]))
+            logging.error('Certificates placed in bundle \n\t%s',
+                          '\n\t'.join([f'Subject: {x.get_subject()},'
+                                       f' Issuer: {x.get_issuer()}'
+                                       for x in bundle]))
             raise CertificateComponentException('Non matching certificates in '
                                                 'input:'
                                                 ' No sibling found for %s'