diff --git a/src/vt/vrt/collection/balance/node_lb_data.cc b/src/vt/vrt/collection/balance/node_lb_data.cc
index 6a5cd55182..d20433ee36 100644
--- a/src/vt/vrt/collection/balance/node_lb_data.cc
+++ b/src/vt/vrt/collection/balance/node_lb_data.cc
@@ -205,6 +205,10 @@ void NodeLBData::createLBDataFile() {
     }
     metadata["type"] = "LBDatafile";
     metadata["rank"] = theContext()->getNode();
+    auto phasesMetadata = lb_data_->metadataToJson();
+    if(phasesMetadata) {
+       metadata["phases"] = *phasesMetadata;
+    }
     lb_data_writer_ = std::make_unique<JSONAppender>(
       "phases", metadata, file_name, compress
     );