diff --git a/acme/api/internal/nonces/nonce_manager_test.go b/acme/api/internal/nonces/nonce_manager_test.go
index 905864ff..a172a0b6 100644
--- a/acme/api/internal/nonces/nonce_manager_test.go
+++ b/acme/api/internal/nonces/nonce_manager_test.go
@@ -49,7 +49,7 @@ func TestNotHoldingLockWhileMakingHTTPRequests(t *testing.T) {
 	}()
 	select {
 	case <-resultCh:
-	case <-time.After(400 * time.Millisecond):
+	case <-time.After(500 * time.Millisecond):
 		t.Fatal("JWS is probably holding a lock while making HTTP request")
 	}
 }
diff --git a/acme/api/internal/secure/jws_test.go b/acme/api/internal/secure/jws_test.go
index c09a8433..2e625f24 100644
--- a/acme/api/internal/secure/jws_test.go
+++ b/acme/api/internal/secure/jws_test.go
@@ -50,7 +50,7 @@ func TestNotHoldingLockWhileMakingHTTPRequests(t *testing.T) {
 	}()
 	select {
 	case <-resultCh:
-	case <-time.After(400 * time.Millisecond):
+	case <-time.After(500 * time.Millisecond):
 		t.Fatal("JWS is probably holding a lock while making HTTP request")
 	}
 }
diff --git a/providers/dns/luadns/luadns.go b/providers/dns/luadns/luadns.go
index 180a42c5..e17d026c 100644
--- a/providers/dns/luadns/luadns.go
+++ b/providers/dns/luadns/luadns.go
@@ -119,7 +119,12 @@ func (d *DNSProvider) Present(domain, token, keyAuth string) error {
 		return fmt.Errorf("luadns: failed to get zones: %w", err)
 	}
 
-	zone := findZone(zones, domain)
+	authZone, err := dns01.FindZoneByFqdn(fqdn)
+	if err != nil {
+		return fmt.Errorf("luadns: failed to find zone: %w", err)
+	}
+
+	zone := findZone(zones, authZone)
 	if zone == nil {
 		return fmt.Errorf("luadns: no matching zone found for domain %s", domain)
 	}