diff --git a/indexing-hadoop/src/main/java/org/apache/druid/indexer/JobHelper.java b/indexing-hadoop/src/main/java/org/apache/druid/indexer/JobHelper.java
index 59bc30d179d..da5b9e113a3 100644
--- a/indexing-hadoop/src/main/java/org/apache/druid/indexer/JobHelper.java
+++ b/indexing-hadoop/src/main/java/org/apache/druid/indexer/JobHelper.java
@@ -490,7 +490,6 @@ public class JobHelper
                   progressable
               )) {
                 HadoopDruidIndexerConfig.JSON_MAPPER.writeValue(descriptorOut, segment);
-                descriptorOut.flush();
               }
             }
             catch (RuntimeException | IOException ex) {