diff --git a/lib_source/qml/Qt5/RibbonMessageBarGroup.qml b/lib_source/qml/Qt5/RibbonMessageBarGroup.qml
index d5bfacd..147377d 100644
--- a/lib_source/qml/Qt5/RibbonMessageBarGroup.qml
+++ b/lib_source/qml/Qt5/RibbonMessageBarGroup.qml
@@ -57,6 +57,8 @@ RibbonBlur {
         }
         color: folded ? RibbonTheme.isDarkMode ? "black" : "white" : "transparent"
         height: control.implicitHeight - (folded ? handler.height : 0)
+        topLeftRadius: RibbonTheme.modernStyle && RibbonWindow.window && RibbonWindow.window.tabBar && RibbonWindow.window.tabBar.folded ? 10 : 0
+        topRightRadius: topLeftRadius
         bottomLeftRadius: RibbonTheme.modernStyle && folded ? 10 : 0
         bottomRightRadius: bottomLeftRadius
         ListView{
diff --git a/lib_source/qml/Qt6/RibbonMessageBarGroup.qml b/lib_source/qml/Qt6/RibbonMessageBarGroup.qml
index 1d34b69..a52d3ca 100644
--- a/lib_source/qml/Qt6/RibbonMessageBarGroup.qml
+++ b/lib_source/qml/Qt6/RibbonMessageBarGroup.qml
@@ -57,6 +57,8 @@ RibbonBlur {
         }
         color: folded ? RibbonTheme.isDarkMode ? "black" : "white" : "transparent"
         height: control.implicitHeight - (folded ? handler.height : 0)
+        topLeftRadius: RibbonTheme.modernStyle && RibbonWindow.window && RibbonWindow.window.tabBar && RibbonWindow.window.tabBar.folded ? 10 : 0
+        topRightRadius: topLeftRadius
         bottomLeftRadius: RibbonTheme.modernStyle && folded ? 10 : 0
         bottomRightRadius: bottomLeftRadius
         ListView{