diff --git a/lib/src/form/src/controller.dart b/lib/src/form/src/controller.dart
index faa683f..92f63d8 100644
--- a/lib/src/form/src/controller.dart
+++ b/lib/src/form/src/controller.dart
@@ -71,7 +71,7 @@ class AstromicFormController extends FormController {
     // Add the controllers and values.
     for (int i = 0; i < initialCount; i++) {
       for (MapEntry<String, bool> fieldEntry in groupStructure.fields.entries) {
-        String fieldID = '${groupStructure.id}-$i-${fieldEntry.key}';
+        String fieldID = '${groupStructure.id}-#$i-${fieldEntry.key}';
         controller(fieldID);
       }
     }