diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/RootGroup.xml b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/RootGroup.xml
new file mode 100644
index 000000000..ac4baa543
--- /dev/null
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/RootGroup.xml
@@ -0,0 +1,12 @@
+<widget>
+    <header>
+        <name>RootGroup</name>
+        <guiname>CRootGroup</guiname>
+        <ancestor>InterfaceGroup</ancestor>
+        <description></description>
+        <abstract>true</abstract>
+        <icon></icon>
+    </header>
+    <properties>
+    </properties>
+</widget>