diff --git a/src/components/SignalSourceGroupDialog.vue b/src/components/SignalSourceGroupDialog.vue
index 8ba8845..3d0cfe6 100644
--- a/src/components/SignalSourceGroupDialog.vue
+++ b/src/components/SignalSourceGroupDialog.vue
@@ -255,7 +255,7 @@ export default defineComponent({
               (e) => e && e.uuid == options.data?.uuid
             );
           if (signal_item_data_) {
-            selected.value = signal_item_data_.uuid;
+            selected.value = signal_item_data_.parent_uuid;
           } else {
             selected.value = "";
           }