diff --git a/dmxcontroller.h b/dmxcontroller.h
index 714a89c..1160874 100644
--- a/dmxcontroller.h
+++ b/dmxcontroller.h
@@ -13,7 +13,7 @@ class DmxController : public QObject
 {
     Q_OBJECT
     Q_PROPERTY(int performance READ performance NOTIFY performanceChanged)
-    Q_PROPERTY(ScheinCommanderSettings* settings READ settings)
+    Q_PROPERTY(ScheinCommanderSettings* settings READ settings CONSTANT)
 
 public:
     explicit DmxController(ScheinCommanderSettings &settings, QObject *parent = nullptr);
diff --git a/main.cpp b/main.cpp
index 3da55b2..aa87cf4 100644
--- a/main.cpp
+++ b/main.cpp
@@ -54,8 +54,8 @@ int main(int argc, char *argv[])
 
     DmxController controller{settings, &app};
 
-    if (!parser.positionalArguments().isEmpty())
-        controller.loadProject(parser.positionalArguments().first());
+    if (const auto &positionalArguments = parser.positionalArguments(); !positionalArguments.isEmpty())
+        controller.loadProject(positionalArguments.first());
     else if (const auto &lastProjectFile = settings.lastProjectFile(); !lastProjectFile.isEmpty())
         controller.loadProject(lastProjectFile);