diff --git a/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java b/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java
index 1f2aab241d..ae7e49a079 100644
--- a/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java
+++ b/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java
@@ -82,7 +82,7 @@ public EventListener<? super T> getListener() {
 
     @Override
     public int hashCode() {
-        int result = eventType.hashCode();
+        final int result = eventType.hashCode();
         return HASH_FACTOR * result + listener.hashCode();
     }