diff --git a/src/scripts/runaction/settingsdialog.py b/src/scripts/runaction/settingsdialog.py
--- a/src/scripts/runaction/settingsdialog.py
+++ b/src/scripts/runaction/settingsdialog.py
@@ -29,6 +29,8 @@
         file = QtCore.QFile(os.path.join(os.path.dirname(__file__), "settings.ui"))
         file.open(QtCore.QFile.ReadOnly)
         self.ui = QtUiTools.QUiLoader().load(file, self)
+        file.close()
+
         layout = QtWidgets.QVBoxLayout(self)
         layout.addWidget(self.ui)