diff --git a/src/Gui/Placement.h b/src/Gui/Placement.h
index 233284d1a..48b9c6238 100644
--- a/src/Gui/Placement.h
+++ b/src/Gui/Placement.h
@@ -116,6 +116,12 @@ public:
     bool reject();
     void clicked(int id);
 
+    bool isAllowedAlterDocument(void) const
+    { return true; }
+    bool isAllowedAlterView(void) const
+    { return true; }
+    bool isAllowedAlterSelection(void) const
+    { return true; }
     QDialogButtonBox::StandardButtons getStandardButtons() const;
 
 public Q_SLOTS: