diff --git a/src/sql/engine/expr/ob_expr_to_outfile_row.cpp b/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
index 5c57352556..1615973fab 100644
--- a/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
+++ b/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
@@ -232,9 +232,9 @@ int ObExprToOutfileRow::print_field(char *buf, const int64_t buf_len, int64_t &p
 {
   int ret = OB_SUCCESS;
   int64_t tmp_pos = 0;
-  const bool need_enclose = 0 != out_info.wchar_enclose_ &&
-                            (!out_info.is_optional_ || obj.is_string_type());
-  if (need_enclose) {
+  const bool need_enclose = 0 != out_info.wchar_enclose_ &&
+                            (!out_info.is_optional_ || obj.is_string_type());
+  if (need_enclose) {
     OZ(out_info.enclose_.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
   }
   if (0 == out_info.wchar_escape_) {