diff --git a/processing/src/main/java/io/druid/segment/data/TmpFileIOPeon.java b/processing/src/main/java/io/druid/segment/data/TmpFileIOPeon.java
index a60ed66838c..a575c4116f1 100644
--- a/processing/src/main/java/io/druid/segment/data/TmpFileIOPeon.java
+++ b/processing/src/main/java/io/druid/segment/data/TmpFileIOPeon.java
@@ -42,6 +42,7 @@ public class TmpFileIOPeon implements IOPeon
     File retFile = createdFiles.get(filename);
     if (retFile == null) {
       retFile = File.createTempFile("filePeon", filename);
+      retFile.deleteOnExit();
       createdFiles.put(filename, retFile);
     }
     return new BufferedOutputStream(new FileOutputStream(retFile));