diff --git a/src/main/java/org/jenkinsci/plugins/workflow/steps/durable_task/DurableTaskStep.java b/src/main/java/org/jenkinsci/plugins/workflow/steps/durable_task/DurableTaskStep.java
index 03b8df32..5f74fee6 100644
--- a/src/main/java/org/jenkinsci/plugins/workflow/steps/durable_task/DurableTaskStep.java
+++ b/src/main/java/org/jenkinsci/plugins/workflow/steps/durable_task/DurableTaskStep.java
@@ -603,6 +603,7 @@ private static class HandlerImpl extends Handler {
         }
 
         @Override public void exited(int code, byte[] output) throws Exception {
+            listener.getLogger().flush();
             execution.exited(code, output);
         }