diff --git a/apache-kafka-2/src/main/java/com/baeldung/kafka/message/ordering/ProducerConfigurations.java b/apache-kafka-2/src/main/java/com/baeldung/kafka/message/ordering/ProducerConfigurations.java
index c9cef04bbc..81d91693fe 100644
--- a/apache-kafka-2/src/main/java/com/baeldung/kafka/message/ordering/ProducerConfigurations.java
+++ b/apache-kafka-2/src/main/java/com/baeldung/kafka/message/ordering/ProducerConfigurations.java
@@ -8,7 +8,7 @@ import java.util.Properties;
 public class ProducerConfigurations {
     public static void main(String[] args) {
         Properties props = new Properties();
-        props.put("bootstrap.servers", "localhost:9092");
+        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
         props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
         props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
         props.put(ProducerConfig.MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION, "1");