diff --git a/spring-boot/src/main/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrar.java b/spring-boot/src/main/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrar.java
index 81dbf54f98..cc9caafdf2 100644
--- a/spring-boot/src/main/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrar.java
+++ b/spring-boot/src/main/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrar.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2015 the original author or authors.
+ * Copyright 2012-2016 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.
@@ -44,6 +44,7 @@ import org.springframework.util.Assert;
  * {@link MBeanServer}.
  *
  * @author Stephane Nicoll
+ * @author Andy Wilkinson
  * @since 1.3.0
  */
 public class SpringApplicationAdminMXBeanRegistrar
@@ -80,7 +81,9 @@ public class SpringApplicationAdminMXBeanRegistrar
 
 	@Override
 	public void onApplicationEvent(ApplicationReadyEvent event) {
-		this.ready = true;
+		if (this.applicationContext.equals(event.getApplicationContext())) {
+			this.ready = true;
+		}
 	}
 
 	@Override
diff --git a/spring-boot/src/test/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrarTests.java b/spring-boot/src/test/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrarTests.java
index 7db1fb689d..941a307f98 100644
--- a/spring-boot/src/test/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrarTests.java
+++ b/spring-boot/src/test/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrarTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2015 the original author or authors.
+ * Copyright 2012-2016 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.
@@ -30,20 +30,26 @@ import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
 import org.springframework.boot.SpringApplication;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.event.ContextRefreshedEvent;
+import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.CoreMatchers.nullValue;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
 
 /**
  * Tests for {@link SpringApplicationAdminMXBeanRegistrar}.
  *
  * @author Stephane Nicoll
+ * @author Andy Wilkinson
  */
 public class SpringApplicationAdminMXBeanRegistrarTests {
 
@@ -89,6 +95,25 @@ public class SpringApplicationAdminMXBeanRegistrarTests {
 		assertThat(isApplicationReady(objectName), is(true));
 	}
 
+	@Test
+	public void eventsFromOtherContextsAreIgnored() throws MalformedObjectNameException {
+		SpringApplicationAdminMXBeanRegistrar registrar = new SpringApplicationAdminMXBeanRegistrar(
+				OBJECT_NAME);
+		ConfigurableApplicationContext context = mock(
+				ConfigurableApplicationContext.class);
+		registrar.setApplicationContext(context);
+		registrar.onApplicationEvent(new ApplicationReadyEvent(new SpringApplication(),
+				null, mock(ConfigurableApplicationContext.class)));
+		assertFalse(isApplicationReady(registrar));
+		registrar.onApplicationEvent(
+				new ApplicationReadyEvent(new SpringApplication(), null, context));
+		assertTrue(isApplicationReady(registrar));
+	}
+
+	private boolean isApplicationReady(SpringApplicationAdminMXBeanRegistrar registrar) {
+		return (Boolean) ReflectionTestUtils.getField(registrar, "ready");
+	}
+
 	@Test
 	public void environmentIsExposed() {
 		final ObjectName objectName = createObjectName(OBJECT_NAME);