diff --git a/server/upstream/domains.go b/server/upstream/domains.go
index 95ba436..6ad6506 100644
--- a/server/upstream/domains.go
+++ b/server/upstream/domains.go
@@ -4,6 +4,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/rs/zerolog/log"
+
 	"codeberg.org/codeberg/pages/server/cache"
 	"codeberg.org/codeberg/pages/server/gitea"
 )
@@ -42,6 +44,8 @@ func CheckCanonicalDomain(giteaClient *gitea.Client, targetOwner, targetRepo, ta
 					valid = true
 				}
 			}
+		} else {
+			log.Info().Err(err).Msgf("could not read %s of %s/%s", canonicalDomainConfig, targetOwner, targetRepo)
 		}
 		domains = append(domains, targetOwner+mainDomainSuffix)
 		if domains[len(domains)-1] == actualDomain {