diff --git a/system/diagnostic_graph_aggregator/src/common/graph/config.cpp b/system/diagnostic_graph_aggregator/src/common/graph/config.cpp
index c9d281a5c886e..553c21b5ff4d7 100644
--- a/system/diagnostic_graph_aggregator/src/common/graph/config.cpp
+++ b/system/diagnostic_graph_aggregator/src/common/graph/config.cpp
@@ -102,8 +102,8 @@ UnitConfig * FileLoader::create_unit_config(const TreeData & data)
     unit->item = create_link_config(item, unit);
   }
   const auto list = unit->data.optional("list").children();
-  for (const auto & data : list) {
-    unit->list.push_back(create_link_config(data, unit));
+  for (const auto & tree_data : list) {
+    unit->list.push_back(create_link_config(tree_data, unit));
   }
   return unit;
 }