diff --git a/velox/connectors/hive/HiveConnectorUtil.h b/velox/connectors/hive/HiveConnectorUtil.h
index 8a68a69db4bd..65696c877510 100644
--- a/velox/connectors/hive/HiveConnectorUtil.h
+++ b/velox/connectors/hive/HiveConnectorUtil.h
@@ -30,11 +30,6 @@ class HiveTableHandle;
 class HiveConfig;
 struct HiveConnectorSplit;
 
-#ifdef VELOX_ENABLE_BACKWARD_COMPATIBILITY
-using SubfieldFilters =
-    std::unordered_map<common::Subfield, std::unique_ptr<common::Filter>>;
-#endif
-
 const std::string& getColumnName(const common::Subfield& subfield);
 
 void checkColumnNameLowerCase(const std::shared_ptr<const Type>& type);