diff --git a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableApplicationContext.java b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableApplicationContext.java
index a554371175..253f4bc7e9 100644
--- a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableApplicationContext.java
+++ b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -35,7 +35,8 @@ import org.springframework.context.ConfigurableApplicationContext;
  * @see ApplicationContext
  */
 public interface AssertableApplicationContext
-		extends ApplicationContextAssertProvider<ConfigurableApplicationContext> {
+		extends ApplicationContextAssertProvider<ConfigurableApplicationContext>,
+		ConfigurableApplicationContext {
 
 	/**
 	 * Factory method to create a new {@link AssertableApplicationContext} instance.
diff --git a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableReactiveWebApplicationContext.java b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableReactiveWebApplicationContext.java
index 868e6194ee..b767a35610 100644
--- a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableReactiveWebApplicationContext.java
+++ b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableReactiveWebApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -35,7 +35,7 @@ import org.springframework.boot.web.reactive.context.ReactiveWebApplicationConte
  */
 public interface AssertableReactiveWebApplicationContext extends
 		ApplicationContextAssertProvider<ConfigurableReactiveWebApplicationContext>,
-		ReactiveWebApplicationContext {
+		ConfigurableReactiveWebApplicationContext {
 
 	/**
 	 * Factory method to create a new {@link AssertableReactiveWebApplicationContext}
diff --git a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableWebApplicationContext.java b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableWebApplicationContext.java
index a7ff4e5b44..e00969042d 100644
--- a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableWebApplicationContext.java
+++ b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/AssertableWebApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -36,7 +36,7 @@ import org.springframework.web.context.WebApplicationContext;
  */
 public interface AssertableWebApplicationContext
 		extends ApplicationContextAssertProvider<ConfigurableWebApplicationContext>,
-		WebApplicationContext {
+		ConfigurableWebApplicationContext {
 
 	/**
 	 * Factory method to create a new {@link AssertableWebApplicationContext} instance.