diff --git a/lib/src/form/src/controller.dart b/lib/src/form/src/controller.dart
index ef6f07a..cde3c37 100644
--- a/lib/src/form/src/controller.dart
+++ b/lib/src/form/src/controller.dart
@@ -149,7 +149,7 @@ class AstromicFormController extends FormController {
       instances.add(
         FormGroupInstance(
           fields: Map<String, String>.fromEntries(fieldsIDs.map((String id) => MapEntry<String, String>('$formGroupID-#$i-$id', value('$formGroupID-#$i-$id'))).toList()),
-          values: Map<String, dynamic>.fromEntries(valuesIDs.map((String a) => MapEntry<String, String>('$formGroupID-#$i-$a', getValue<dynamic>('$formGroupID-#$i-$a'))).toList()),
+          values: valuesIDs.isNotEmpty? Map<String, dynamic>.fromEntries(valuesIDs.map((String a) => MapEntry<String, dynamic>('$formGroupID-#$i-$a', getValue<dynamic>('$formGroupID-#$i-$a'))).toList()) : <String, dynamic>{},
           subGroups: subValues,
         ),
       );