diff --git a/toonz/sources/toonzqt/stageobjectselection.cpp b/toonz/sources/toonzqt/stageobjectselection.cpp
index bceff3a..b8665be 100644
--- a/toonz/sources/toonzqt/stageobjectselection.cpp
+++ b/toonz/sources/toonzqt/stageobjectselection.cpp
@@ -277,7 +277,7 @@ bool StageObjectSelection::isConnected() const {
 //-------------------------------------------------------
 
 void StageObjectSelection::groupSelection() {
-  if (m_selectedObjects.size() <= 1 || !isConnected()) return;
+  if (m_selectedObjects.size() <= 1) return;
   TStageObjectCmd::group(m_selectedObjects, m_xshHandle);
   selectNone();
   m_xshHandle->notifyXsheetChanged();