diff --git a/src/widgets/graphicsview/qgraphicsanchorlayout_p.h b/src/widgets/graphicsview/qgraphicsanchorlayout_p.h
index 3a049105b9d..d046cd93d21 100644
--- a/src/widgets/graphicsview/qgraphicsanchorlayout_p.h
+++ b/src/widgets/graphicsview/qgraphicsanchorlayout_p.h
@@ -75,6 +75,8 @@ struct AnchorVertex
   Represents an edge (anchor) in the internal graph.
 */
 struct AnchorData : public QSimplexVariable {
+    Q_DISABLE_COPY_MOVE(AnchorData)
+
     enum Type {
         Normal = 0,
         Sequential,
diff --git a/src/widgets/graphicsview/qsimplex_p.h b/src/widgets/graphicsview/qsimplex_p.h
index c45e728ccf9..4ae4e544ca5 100644
--- a/src/widgets/graphicsview/qsimplex_p.h
+++ b/src/widgets/graphicsview/qsimplex_p.h
@@ -43,8 +43,10 @@ struct QSimplexVariable
 
     Where (ci, Xi) are the pairs in "variables" and K the real "constant".
 */
-struct QSimplexConstraint
+struct QSimplexConstraint final
 {
+    Q_DISABLE_COPY_MOVE(QSimplexConstraint)
+
     QSimplexConstraint() : constant(0), ratio(Equal), artificial(nullptr) {}
 
     enum Ratio {
@@ -109,7 +111,7 @@ struct QSimplexConstraint
 #endif
 };
 
-class QSimplex
+class QSimplex final
 {
     Q_DISABLE_COPY_MOVE(QSimplex)
 public: