diff --git a/acme4j-it/src/main/java/org/shredzone/acme4j/it/server/DnsServer.java b/acme4j-it/src/main/java/org/shredzone/acme4j/it/server/DnsServer.java
index 3c25ca2b..bcc5edde 100644
--- a/acme4j-it/src/main/java/org/shredzone/acme4j/it/server/DnsServer.java
+++ b/acme4j-it/src/main/java/org/shredzone/acme4j/it/server/DnsServer.java
@@ -43,7 +43,7 @@ import org.xbill.DNS.Type;
 public class DnsServer {
     private static final Logger LOG = LoggerFactory.getLogger(DnsServer.class);
     private static final int UDP_SIZE = 512;
-    private static final long TTL = 86321L;
+    private static final long TTL = 300L;
 
     private final Map<String, String> txtRecords = synchronizedMap(new HashMap<>());
     private Thread thread = null;
diff --git a/acme4j-it/src/test/java/org/shredzone/acme4j/it/OrderIT.java b/acme4j-it/src/test/java/org/shredzone/acme4j/it/OrderIT.java
index 43cf503b..5c9b3b23 100644
--- a/acme4j-it/src/test/java/org/shredzone/acme4j/it/OrderIT.java
+++ b/acme4j-it/src/test/java/org/shredzone/acme4j/it/OrderIT.java
@@ -127,7 +127,7 @@ public class OrderIT extends PebbleITBase {
             Dns01Challenge challenge = auth.findChallenge(Dns01Challenge.TYPE);
             assertThat(challenge, is(notNullValue()));
 
-            dnsServer.addTxtRecord(TEST_DOMAIN, challenge.getDigest());
+            dnsServer.addTxtRecord("_acme-challenge." + TEST_DOMAIN, challenge.getDigest());
             return challenge;
         });
     }