diff --git a/GUI/View/SampleDesigner/SampleEditorCommands.cpp b/GUI/View/SampleDesigner/SampleEditorCommands.cpp
index 09eff003a5ee7d835826d876659568f491b81c63..9800acb2d8c1693445a8b8452273055d76a6a1b9 100644
--- a/GUI/View/SampleDesigner/SampleEditorCommands.cpp
+++ b/GUI/View/SampleDesigner/SampleEditorCommands.cpp
@@ -32,6 +32,7 @@ CommandRemoveLayer::CommandRemoveLayer(SampleEditorController* ec, LayerItem* la
     : QUndoCommand(parent)
     , m_ec(ec)
 {
+    setText("Remove layer");
     m_indexOfLayer = ec->multiLayerItem()->layers().indexOf(layerItem);
     m_layerItemBackup = GUI::Util::createBackup(layerItem);
 }
@@ -55,13 +56,13 @@ void CommandRemoveLayer::undo()
 }
 
 CommandChangeValue::CommandChangeValue(const QString& label, SampleEditorController* ec,
-                                       double oldValue, double newValue, QString path,
+                                       double oldValue, double newValue, const QString& path,
                                        QUndoCommand* parent /*= nullptr*/)
     : QUndoCommand(parent)
     , m_ec(ec)
     , m_oldValue(oldValue)
     , m_newValue(newValue)
-    , m_path(std::move(path))
+    , m_path(path)
 {
     setText("change " + label + "\n");
 }
@@ -73,7 +74,7 @@ int CommandChangeValue::id() const
 
 bool CommandChangeValue::mergeWith(const QUndoCommand* command)
 {
-    if (command->id() != id()) // make sure other is also an AppendText command
+    if (command->id() != id()) // make sure other is also a changeValue command
         return false;
 
     const auto* const other = dynamic_cast<const CommandChangeValue*>(command);
diff --git a/GUI/View/SampleDesigner/SampleEditorCommands.h b/GUI/View/SampleDesigner/SampleEditorCommands.h
index 69f91eb1aba3ed81b4f60e107fdc1a3e109519b9..e0923cd2c1b30fcd636e6de94482b086fbf57414 100644
--- a/GUI/View/SampleDesigner/SampleEditorCommands.h
+++ b/GUI/View/SampleDesigner/SampleEditorCommands.h
@@ -24,7 +24,7 @@ class LayerItem;
 class CommandChangeValue : public QUndoCommand {
 public:
     CommandChangeValue(const QString& label, SampleEditorController* ec, double oldValue,
-                       double newValue, QString path, QUndoCommand* parent = nullptr);
+                       double newValue, const QString& path, QUndoCommand* parent = nullptr);
 
     int id() const override;
     bool mergeWith(const QUndoCommand* command) override;