diff --git a/extensions/hibernate-search-elasticsearch/deployment/src/main/java/io/quarkus/hibernate/search/elasticsearch/HibernateSearchElasticsearchProcessor.java b/extensions/hibernate-search-elasticsearch/deployment/src/main/java/io/quarkus/hibernate/search/elasticsearch/HibernateSearchElasticsearchProcessor.java
index 2568bc9a261cbd..3d9fd86093f33a 100644
--- a/extensions/hibernate-search-elasticsearch/deployment/src/main/java/io/quarkus/hibernate/search/elasticsearch/HibernateSearchElasticsearchProcessor.java
+++ b/extensions/hibernate-search-elasticsearch/deployment/src/main/java/io/quarkus/hibernate/search/elasticsearch/HibernateSearchElasticsearchProcessor.java
@@ -205,6 +205,7 @@ private static void addReflectiveClass(IndexView index, Set<DotName> reflectiveC
 
         Type superClassType = classInfo.superClassType();
         while (superClassType != null && !superClassType.name().toString().equals("java.lang.Object")) {
+            reflectiveClassCollector.add(superClassType.name());
             if (superClassType instanceof ClassType) {
                 superClassType = index.getClassByName(superClassType.name()).superClassType();
             } else if (superClassType instanceof ParameterizedType) {