diff --git a/src/Mod/Part/App/PropertyTopoShape.h b/src/Mod/Part/App/PropertyTopoShape.h
index 8234da4cf3..87b038de5a 100644
--- a/src/Mod/Part/App/PropertyTopoShape.h
+++ b/src/Mod/Part/App/PropertyTopoShape.h
@@ -126,7 +126,7 @@ struct PartExport ShapeHistory {
     using MapList = std::map<int, std::vector<int> >;
     using List = std::vector<int>;
 
-    TopAbs_ShapeEnum type;
+    TopAbs_ShapeEnum type {TopAbs_SHAPE};
     MapList shapeMap;
     ShapeHistory() {}
     /**