diff --git a/source/orm/query/query_builder.cpp b/source/orm/query/query_builder.cpp
index 08ab4e7..5c6d5c2 100644
--- a/source/orm/query/query_builder.cpp
+++ b/source/orm/query/query_builder.cpp
@@ -36,7 +36,7 @@ sql::query_context query_builder::compile(const query_data &data,
   return {query_};
 }
 
-std::string handle_column(sql::query_context &ctx, const sql::dialect *d, const query_data &data, const table_column &col) {
+std::string handle_column(sql::query_context &ctx, const sql::dialect *d, const table_column &col) {
   if (col.is_function()) {
     ctx.prototype.emplace_back(col.has_alias() ? col.alias() : col.canonical_name());
     ctx.prototype.back().change_type(utils::basic_type::Int32);
@@ -105,14 +105,14 @@ void query_builder::visit(internal::query_select_part &part) {
       result = dialect_->asterisk();
   } else if (const auto &columns = part.columns(); columns.size() < 2) {
     for (const auto &col: columns) {
-      result.append(handle_column(query_, dialect_, *data_, col ));
+      result.append(handle_column(query_, dialect_, col ));
     }
   } else {
     auto it = columns.begin();
-    result.append(handle_column(query_, dialect_, *data_, *it++));
+    result.append(handle_column(query_, dialect_, *it++));
     for (; it != columns.end(); ++it) {
       result.append(", ");
-      result.append(handle_column(query_, dialect_, *data_, *it));
+      result.append(handle_column(query_, dialect_, *it));
     }
   }