diff --git a/metricflow/dataflow/builder/dataflow_plan_builder.py b/metricflow/dataflow/builder/dataflow_plan_builder.py
index d41d22d04..182bbe1a0 100644
--- a/metricflow/dataflow/builder/dataflow_plan_builder.py
+++ b/metricflow/dataflow/builder/dataflow_plan_builder.py
@@ -636,6 +636,7 @@ def _build_derived_metric_output_node(
             if len(parent_nodes) == 1
             else CombineAggregatedOutputsNode.create(parent_nodes=parent_nodes)
         )
+        # xyx
         output_node: DataflowPlanNode = ComputeMetricsNode.create(
             parent_node=parent_node,
             metric_specs=[metric_spec],