diff --git a/server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/CompositeAggregationBuilder.java b/server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/CompositeAggregationBuilder.java
index 6b894b3a9dbbd..ca88d50898763 100644
--- a/server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/CompositeAggregationBuilder.java
+++ b/server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/CompositeAggregationBuilder.java
@@ -97,11 +97,6 @@ public boolean supportsSampling() {
         return true;
     }
 
-    @Override
-    public boolean supportsParallelCollection() {
-        return false;
-    }
-
     public CompositeAggregationBuilder(StreamInput in) throws IOException {
         super(in);
         int num = in.readVInt();
diff --git a/server/src/main/java/org/elasticsearch/search/aggregations/bucket/histogram/VariableWidthHistogramAggregationBuilder.java b/server/src/main/java/org/elasticsearch/search/aggregations/bucket/histogram/VariableWidthHistogramAggregationBuilder.java
index 9ca606f460fbb..f7870df45648e 100644
--- a/server/src/main/java/org/elasticsearch/search/aggregations/bucket/histogram/VariableWidthHistogramAggregationBuilder.java
+++ b/server/src/main/java/org/elasticsearch/search/aggregations/bucket/histogram/VariableWidthHistogramAggregationBuilder.java
@@ -137,11 +137,6 @@ public BucketCardinality bucketCardinality() {
         return BucketCardinality.MANY;
     }
 
-    @Override
-    public boolean supportsParallelCollection() {
-        return false;
-    }
-
     @Override
     protected AggregationBuilder shallowCopy(AggregatorFactories.Builder factoriesBuilder, Map<String, Object> metaData) {
         return new VariableWidthHistogramAggregationBuilder(this, factoriesBuilder, metaData);
diff --git a/server/src/main/java/org/elasticsearch/search/aggregations/bucket/nested/NestedAggregationBuilder.java b/server/src/main/java/org/elasticsearch/search/aggregations/bucket/nested/NestedAggregationBuilder.java
index b6e6a39356d46..f4ba3db383586 100644
--- a/server/src/main/java/org/elasticsearch/search/aggregations/bucket/nested/NestedAggregationBuilder.java
+++ b/server/src/main/java/org/elasticsearch/search/aggregations/bucket/nested/NestedAggregationBuilder.java
@@ -81,11 +81,6 @@ public BucketCardinality bucketCardinality() {
         return BucketCardinality.ONE;
     }
 
-    @Override
-    public boolean supportsParallelCollection() {
-        return false;
-    }
-
     @Override
     protected AggregatorFactory doBuild(AggregationContext context, AggregatorFactory parent, Builder subFactoriesBuilder)
         throws IOException {
diff --git a/server/src/main/java/org/elasticsearch/search/aggregations/metrics/CardinalityAggregationBuilder.java b/server/src/main/java/org/elasticsearch/search/aggregations/metrics/CardinalityAggregationBuilder.java
index 03e3dc93675d3..615b46434226d 100644
--- a/server/src/main/java/org/elasticsearch/search/aggregations/metrics/CardinalityAggregationBuilder.java
+++ b/server/src/main/java/org/elasticsearch/search/aggregations/metrics/CardinalityAggregationBuilder.java
@@ -113,11 +113,6 @@ public boolean supportsSampling() {
         return true;
     }
 
-    @Override
-    public boolean supportsParallelCollection() {
-        return false;
-    }
-
     @Override
     protected boolean serializeTargetValueType(TransportVersion version) {
         return true;
diff --git a/server/src/test/java/org/elasticsearch/search/aggregations/AggregatorFactoriesTests.java b/server/src/test/java/org/elasticsearch/search/aggregations/AggregatorFactoriesTests.java
index bf0b087f67a5a..d67e99e4521f1 100644
--- a/server/src/test/java/org/elasticsearch/search/aggregations/AggregatorFactoriesTests.java
+++ b/server/src/test/java/org/elasticsearch/search/aggregations/AggregatorFactoriesTests.java
@@ -334,19 +334,19 @@ public void testSupportsParallelCollection() {
         {
             AggregatorFactories.Builder builder = new AggregatorFactories.Builder();
             builder.addAggregator(new CardinalityAggregationBuilder("cardinality"));
-            assertFalse(builder.supportsParallelCollection());
+            assertTrue(builder.supportsParallelCollection());
         }
         {
             AggregatorFactories.Builder builder = new AggregatorFactories.Builder();
             builder.addAggregator(new NestedAggregationBuilder("nested", "path"));
-            assertFalse(builder.supportsParallelCollection());
+            assertTrue(builder.supportsParallelCollection());
         }
         {
             AggregatorFactories.Builder builder = new AggregatorFactories.Builder();
             builder.addAggregator(
                 new CompositeAggregationBuilder("composite", Collections.singletonList(new TermsValuesSourceBuilder("name")))
             );
-            assertFalse(builder.supportsParallelCollection());
+            assertTrue(builder.supportsParallelCollection());
         }
         {
             AggregatorFactories.Builder builder = new AggregatorFactories.Builder();
diff --git a/x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/aggs/frequentitemsets/FrequentItemSetsAggregationBuilder.java b/x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/aggs/frequentitemsets/FrequentItemSetsAggregationBuilder.java
index 9081f4118f89f..684d61dbdedb3 100644
--- a/x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/aggs/frequentitemsets/FrequentItemSetsAggregationBuilder.java
+++ b/x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/aggs/frequentitemsets/FrequentItemSetsAggregationBuilder.java
@@ -182,11 +182,6 @@ public boolean supportsSampling() {
         return true;
     }
 
-    @Override
-    public boolean supportsParallelCollection() {
-        return false;
-    }
-
     @Override
     protected AggregationBuilder shallowCopy(Builder factoriesBuilder, Map<String, Object> metadata) {
         return new FrequentItemSetsAggregationBuilder(name, fields, minimumSupport, minimumSetSize, size, filter, executionHint);