diff --git a/GUI/Model/Mask/MaskItems.h b/GUI/Model/Mask/MaskItems.h
index 497b2b1b00132e863c88d432cf62900622b2c5b8..5e7838c6922e996a8d4dc63829f3eff059aa0db9 100644
--- a/GUI/Model/Mask/MaskItems.h
+++ b/GUI/Model/Mask/MaskItems.h
@@ -87,8 +87,6 @@ public:
 
 class PolygonPointItem : public MaskObject {
 public:
-    static constexpr auto M_TYPE{"PolygonPoint"};
-
     PolygonPointItem();
 
     double posX() const { return m_posX; }