diff --git a/src/app/puzzle/vpuzzlelayout.cpp b/src/app/puzzle/vpuzzlelayout.cpp
index 1d4631c98..0d3e4a1ae 100644
--- a/src/app/puzzle/vpuzzlelayout.cpp
+++ b/src/app/puzzle/vpuzzlelayout.cpp
@@ -31,6 +31,7 @@
 VPuzzleLayout::VPuzzleLayout() :
     m_unplacedPiecesLayer(new VPuzzleLayer()),
     m_layers(QList<VPuzzleLayer *>()),
+    m_layoutUnit(Unit::Cm),
     m_layoutSize(QSizeF()),
     m_layoutMargins(QMarginsF()),
     m_followGrainLine(FollowGrainline::No),
diff --git a/src/app/puzzle/vpuzzlelayout.h b/src/app/puzzle/vpuzzlelayout.h
index 7c75fa6c8..d45ffed52 100644
--- a/src/app/puzzle/vpuzzlelayout.h
+++ b/src/app/puzzle/vpuzzlelayout.h
@@ -77,6 +77,7 @@ public:
     bool GetStickyEdges();
 
 private:
+    Q_DISABLE_COPY(VPuzzleLayout)
     VPuzzleLayer *m_unplacedPiecesLayer;
     QList<VPuzzleLayer *> m_layers;