diff --git a/x-pack/plugin/profiling/src/main/java/org/elasticsearch/xpack/profiling/action/SubGroupCollector.java b/x-pack/plugin/profiling/src/main/java/org/elasticsearch/xpack/profiling/action/SubGroupCollector.java
index 71650cb402348..63491a63243dc 100644
--- a/x-pack/plugin/profiling/src/main/java/org/elasticsearch/xpack/profiling/action/SubGroupCollector.java
+++ b/x-pack/plugin/profiling/src/main/java/org/elasticsearch/xpack/profiling/action/SubGroupCollector.java
@@ -33,12 +33,12 @@ public static SubGroupCollector attach(
         String[] aggregationFields,
         boolean legacyAggregationField
     ) {
-        SubGroupCollector c = new SubGroupCollector(parentAggregation, aggregationFields, legacyAggregationField);
+        SubGroupCollector c = new SubGroupCollector(aggregationFields, legacyAggregationField);
         c.addAggregations(parentAggregation);
         return c;
     }
 
-    private SubGroupCollector(AbstractAggregationBuilder<?> parentAggregation, String[] aggregationFields, boolean legacyAggregationField) {
+    private SubGroupCollector(String[] aggregationFields, boolean legacyAggregationField) {
         this.aggregationFields = aggregationFields;
         this.legacyAggregationField = legacyAggregationField;
     }