diff --git a/generators/spring-data-relational/generator.mts b/generators/spring-data-relational/generator.mts
index 5210de3ac28a..bb0485083aef 100644
--- a/generators/spring-data-relational/generator.mts
+++ b/generators/spring-data-relational/generator.mts
@@ -86,6 +86,23 @@ export default class SqlGenerator extends BaseApplicationGenerator<SpringBootGen
     return this.delegateTasksToBlueprint(() => this.preparing);
   }
 
+  get preparingEachEntity() {
+    return this.asPreparingEachEntityTaskGroup({
+      prepareEntity({ entity }) {
+        entity.relationships.forEach(relationship => {
+          if (relationship.persistableRelationship === undefined) {
+            // This is a v8.1 behavior, make it default if blueprints adopts it.
+            relationship.persistableRelationship = relationship.ownerSide || relationship.relationshipManyToMany;
+          }
+        });
+      },
+    });
+  }
+
+  get [BaseApplicationGenerator.PREPARING_EACH_ENTITY]() {
+    return this.delegateTasksToBlueprint(() => this.preparingEachEntity);
+  }
+
   get preparingEachEntityRelationship() {
     return this.asPreparingEachEntityRelationshipTaskGroup({
       prepareRelationship({ application, relationship }) {