diff --git a/src/Mod/TechDraw/App/AppTechDrawPy.cpp b/src/Mod/TechDraw/App/AppTechDrawPy.cpp
index da2d0caebb..7654068dff 100644
--- a/src/Mod/TechDraw/App/AppTechDrawPy.cpp
+++ b/src/Mod/TechDraw/App/AppTechDrawPy.cpp
@@ -730,7 +730,7 @@ private:
                         }
                         double grandParentX = 0.0;
                         double grandParentY = 0.0;
-                        if (dvp->isDerivedFrom<TechDraw::DrawProjGroupItem>()) {
+                        if (DrawView::isProjGroupItem(dvp)) {
                             TechDraw::DrawProjGroupItem* dpgi = static_cast<TechDraw::DrawProjGroupItem*>(dvp);
                             TechDraw::DrawProjGroup* dpg = dpgi->getPGroup();
                             if (!dpg) {