diff --git a/clickhouse/columns/array.h b/clickhouse/columns/array.h
index 309d8b35..e8dc6124 100644
--- a/clickhouse/columns/array.h
+++ b/clickhouse/columns/array.h
@@ -95,7 +95,7 @@ class ColumnArray : public Column {
 };
 
 template <typename ColumnType>
-class ColumnArrayT final : public ColumnArray {
+class ColumnArrayT : public ColumnArray {
 public:
     class ArrayValueView;
     using ValueType = ArrayValueView;