diff --git a/feed.go b/feed.go
index 8e6f53c..c24d843 100644
--- a/feed.go
+++ b/feed.go
@@ -192,7 +192,7 @@ func (f *Feed) Check() error {
 		}
 	}
 	if hasAlternateDuplicateLinks(f.Links) {
-		return errors.New("duplicate links with with a rel attribute value of \"alternate\" found")
+		return errors.New("links with with a rel attribute value of \"alternate\" and duplicate type and hreflang attribute values found")
 	}
 
 	if f.Logo != nil {