diff --git a/lucene/benchmark/build.gradle b/lucene/benchmark/build.gradle
index df8c16748f5..67b1644f3de 100644
--- a/lucene/benchmark/build.gradle
+++ b/lucene/benchmark/build.gradle
@@ -49,7 +49,8 @@ sourceSets {
 }
 
 task run(type: JavaExec) {
-  description "Run a perf test (optional: -PtaskAlg=conf/your-algorithm-file -PmaxHeapSize=1G)"
+  description "Run a perf test (optional: -PtaskAlg=conf/your-algorithm-file -PmaxHeapSize=1G). Before running this, you need to download the dataset the benchmark run against (e.g., by getReuters task). See dataset download tasks for more details."
+  group "Utility launchers"
   mainClass = 'org.apache.lucene.benchmark.byTask.Benchmark'
 
   classpath sourceSets.main.runtimeClasspath