diff --git a/spring-vault-core/src/main/java/org/springframework/vault/authentication/AppRoleAuthenticationOptions.java b/spring-vault-core/src/main/java/org/springframework/vault/authentication/AppRoleAuthenticationOptions.java
index 5a829152..e0a929f0 100644
--- a/spring-vault-core/src/main/java/org/springframework/vault/authentication/AppRoleAuthenticationOptions.java
+++ b/spring-vault-core/src/main/java/org/springframework/vault/authentication/AppRoleAuthenticationOptions.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 the original author or authors.
+ * Copyright 2016-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -322,7 +322,7 @@ public class AppRoleAuthenticationOptions {
 	 *
 	 * @since 2.0
 	 */
-	interface RoleId {
+	public interface RoleId {
 
 		/**
 		 * Create a {@link RoleId} object that obtains its value from unwrapping a
@@ -376,7 +376,7 @@ public class AppRoleAuthenticationOptions {
 	 *
 	 * @since 2.0
 	 */
-	interface SecretId {
+	public interface SecretId {
 
 		/**
 		 * Create a {@link SecretId} object that obtains its value from unwrapping a