diff --git a/lucene/benchmark/src/java/org/apache/lucene/benchmark/byTask/programmatic/Sample.java b/lucene/benchmark/src/java/org/apache/lucene/benchmark/byTask/programmatic/Sample.java
index 0e7c93b91fd0..3e1b9dce2c40 100644
--- a/lucene/benchmark/src/java/org/apache/lucene/benchmark/byTask/programmatic/Sample.java
+++ b/lucene/benchmark/src/java/org/apache/lucene/benchmark/byTask/programmatic/Sample.java
@@ -72,7 +72,9 @@ private static Properties initProps() {
     Properties p = new Properties();
     p.setProperty("task.max.depth.log", "3");
     p.setProperty("max.buffered", "buf:10:10:100:100:10:10:100:100");
-    p.setProperty("doc.maker", "org.apache.lucene.benchmark.byTask.feeds.ReutersContentSource");
+    p.setProperty("doc.maker", "org.apache.lucene.benchmark.byTask.feeds.DocMaker");
+    p.setProperty(
+        "content.source", "org.apache.lucene.benchmark.byTask.feeds.ReutersContentSource");
     p.setProperty("log.step", "2000");
     p.setProperty("doc.delete.step", "8");
     p.setProperty("analyzer", "org.apache.lucene.analysis.standard.StandardAnalyzer");