diff --git a/import-with-bulkRequest.go b/import-with-bulkRequest.go
index 7be87e9..bfc7771 100644
--- a/import-with-bulkRequest.go
+++ b/import-with-bulkRequest.go
@@ -232,6 +232,9 @@ func importFromCSV(app *kintone.App, _reader io.Reader) error {
 					}
 				}
 				for key, table := range tables {
+					if len(table.Fields) == 0 {
+						continue
+					}
 					if record[key] == nil {
 						record[key] = getField(kintone.FT_SUBTABLE, "")
 					}