diff --git a/hibernate-core/src/main/java/org/hibernate/stat/internal/DeprecatedNaturalIdCacheStatisticsImpl.java b/hibernate-core/src/main/java/org/hibernate/stat/internal/DeprecatedNaturalIdCacheStatisticsImpl.java
index 5614d44d1781..b3942445d381 100644
--- a/hibernate-core/src/main/java/org/hibernate/stat/internal/DeprecatedNaturalIdCacheStatisticsImpl.java
+++ b/hibernate-core/src/main/java/org/hibernate/stat/internal/DeprecatedNaturalIdCacheStatisticsImpl.java
@@ -6,6 +6,7 @@
  */
 package org.hibernate.stat.internal;
 
+import java.io.Serializable;
 import java.util.HashSet;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicLong;
@@ -29,7 +30,7 @@
  * @author Eric Dalquist
  */
 @Deprecated
-public class DeprecatedNaturalIdCacheStatisticsImpl implements NaturalIdCacheStatistics {
+public class DeprecatedNaturalIdCacheStatisticsImpl implements NaturalIdCacheStatistics, Serializable {
 	private final String regionName;
 	private final transient Set<NaturalIdDataAccess> accessStrategies;