diff --git a/sources/editor/graphicspart/partline.h b/sources/editor/graphicspart/partline.h
index 1e3082a53..7d09b7d60 100644
--- a/sources/editor/graphicspart/partline.h
+++ b/sources/editor/graphicspart/partline.h
@@ -127,6 +127,6 @@ class PartLine : public CustomElementGraphicPart
 		int m_vector_index = -1;
 		QPropertyUndoCommand *m_undo_command;
 		QVector<QetGraphicsHandlerItem *> m_handler_vector;
-		qreal m_rot;
+		qreal m_rot = 0;
 };
 #endif
diff --git a/sources/editor/graphicspart/partpolygon.h b/sources/editor/graphicspart/partpolygon.h
index bee786be4..f2d959460 100644
--- a/sources/editor/graphicspart/partpolygon.h
+++ b/sources/editor/graphicspart/partpolygon.h
@@ -119,6 +119,6 @@ class PartPolygon : public CustomElementGraphicPart
 		QAction *m_insert_point,
 				*m_remove_point;
 		QPointF m_context_menu_pos;
-		qreal m_rot;
+		qreal m_rot = 0;
 };
 #endif