diff --git a/src/Window.cpp b/src/Window.cpp
index 28e783505..832d84a94 100644
--- a/src/Window.cpp
+++ b/src/Window.cpp
@@ -733,6 +733,9 @@ void CWindow::insertWindowToGroup(CWindow* pWindow) {
     const auto BEGINAT = this;
     const auto ENDAT   = m_sGroupData.pNextWindow;
 
+    if (!pWindow->getDecorationByType(DECORATION_GROUPBAR))
+        pWindow->m_dWindowDecorations.emplace_back(std::make_unique<CHyprGroupBarDecoration>(pWindow));
+
     if (!pWindow->m_sGroupData.pNextWindow) {
         BEGINAT->m_sGroupData.pNextWindow = pWindow;
         pWindow->m_sGroupData.pNextWindow = ENDAT;