diff --git a/spring-integration-core/src/main/java/org/springframework/integration/gateway/GatewayProxyFactoryBean.java b/spring-integration-core/src/main/java/org/springframework/integration/gateway/GatewayProxyFactoryBean.java
index c2259371f8..db8324f86f 100644
--- a/spring-integration-core/src/main/java/org/springframework/integration/gateway/GatewayProxyFactoryBean.java
+++ b/spring-integration-core/src/main/java/org/springframework/integration/gateway/GatewayProxyFactoryBean.java
@@ -70,8 +70,6 @@ import org.springframework.util.StringUtils;
  */
 public class GatewayProxyFactoryBean extends AbstractEndpoint implements TrackableComponent, FactoryBean<Object>, MethodInterceptor, BeanClassLoaderAware {
 
-	private volatile InboundMessageMapper<Throwable> exceptionMapper;
-
 	private volatile Class<?> serviceInterface;
 
 	private volatile MessageChannel defaultRequestChannel;
@@ -96,6 +94,8 @@ public class GatewayProxyFactoryBean extends AbstractEndpoint implements Trackab
 
 	private volatile AsyncTaskExecutor asyncExecutor = new SimpleAsyncTaskExecutor();
 
+	private volatile InboundMessageMapper<Throwable> exceptionMapper;
+
 	private volatile boolean initialized;
 
 	private final Object initializationMonitor = new Object();