diff --git a/include/svtools/tabbar.hxx b/include/svtools/tabbar.hxx
index 8735e0728599..948e60b3596b 100644
--- a/include/svtools/tabbar.hxx
+++ b/include/svtools/tabbar.hxx
@@ -496,6 +496,7 @@ public:
     void            SetSelectHdl( const Link<TabBar*,void>& rLink ) { maSelectHdl = rLink; }
     void            SetSplitHdl( const Link<TabBar*,void>& rLink ) { maSplitHdl = rLink; }
     void            SetScrollAreaContextHdl( const Link<const CommandEvent&,void>& rLink ) { maScrollAreaContextHdl = rLink; }
+    void            SetAddButtonEnabled(bool bAddButtonEnabled);
 
     // accessibility
     virtual css::uno::Reference<css::accessibility::XAccessible> CreateAccessible() override;
diff --git a/sc/source/ui/view/tabview5.cxx b/sc/source/ui/view/tabview5.cxx
index d83d4206198d..6db05da9c94e 100644
--- a/sc/source/ui/view/tabview5.cxx
+++ b/sc/source/ui/view/tabview5.cxx
@@ -383,6 +383,7 @@ void ScTabView::UpdateLayerLocks()
         pDrawView->SetLayerLocked( pLayer->GetName(), bProt || bShared );
         pDrawView->SetLayerVisible( pLayer->GetName(), false);
     }
+    pTabControl->SetAddButtonEnabled(aViewData.GetDocument().IsDocEditable());
 }
 
 void ScTabView::DrawDeselectAll()
diff --git a/svtools/source/control/tabbar.cxx b/svtools/source/control/tabbar.cxx
index 5e5aba4af172..a1a074c4470a 100644
--- a/svtools/source/control/tabbar.cxx
+++ b/svtools/source/control/tabbar.cxx
@@ -2494,6 +2494,11 @@ tools::Rectangle TabBar::GetPageArea() const
                      Size(mnLastOffX - mnOffX + 1, GetSizePixel().Height() - mnOffY));
 }
 
+void TabBar::SetAddButtonEnabled(bool bAddButtonEnabled)
+{
+    mpImpl->mxButtonBox->m_xAddButton->set_sensitive(bAddButtonEnabled);
+}
+
 css::uno::Reference<css::accessibility::XAccessible> TabBar::CreateAccessible()
 {
     return mpImpl->maAccessibleFactory.getFactory().createAccessibleTabBar(*this);