diff --git a/spring-integration-core/src/main/java/org/springframework/integration/dsl/context/IntegrationFlowContext.java b/spring-integration-core/src/main/java/org/springframework/integration/dsl/context/IntegrationFlowContext.java
index f3352f1515..c67ca0826e 100644
--- a/spring-integration-core/src/main/java/org/springframework/integration/dsl/context/IntegrationFlowContext.java
+++ b/spring-integration-core/src/main/java/org/springframework/integration/dsl/context/IntegrationFlowContext.java
@@ -21,6 +21,7 @@ import java.util.Map;
 import org.springframework.beans.factory.BeanFactoryAware;
 import org.springframework.integration.core.MessagingTemplate;
 import org.springframework.integration.dsl.IntegrationFlow;
+import org.springframework.lang.Nullable;
 import org.springframework.messaging.MessageChannel;
 
 /**