diff --git a/tests/test_ext/test_ext_modified.py b/tests/test_ext/test_ext_modified.py
index 2158bf60..8bc1b5b4 100644
--- a/tests/test_ext/test_ext_modified.py
+++ b/tests/test_ext/test_ext_modified.py
@@ -22,10 +22,12 @@ from __future__ import annotations
 
 import pytest
 
-from PyQt5.QtCore import QPoint, QPointF, Qt
-from PyQt5.QtGui import QWheelEvent
+from PyQt5.QtCore import QEvent, QPoint, QPointF, Qt
+from PyQt5.QtGui import QKeyEvent, QWheelEvent
+from PyQt5.QtWidgets import QWidget
 
-from novelwriter.extensions.modified import NComboBox, NDoubleSpinBox, NSpinBox
+from novelwriter.extensions.modified import NComboBox, NDialog, NDoubleSpinBox, NSpinBox
+from novelwriter.types import QtModNone, QtRejected
 
 from tests.tools import SimpleDialog
 
@@ -47,6 +49,21 @@ class MockWheelEvent(QWheelEvent):
         return
 
 
+@pytest.mark.gui
+def testExtModified_NDialog(qtbot, monkeypatch):
+    """Test the QDialog class."""
+    widget = QWidget()
+    dialog = NDialog(widget)
+    assert dialog.parent() is widget
+
+    dialog.softDelete()
+    assert dialog.parent() is None
+
+    with qtbot.waitSignal(dialog.rejected, timeout=1000):
+        dialog.keyPressEvent(QKeyEvent(QEvent.Type.KeyPress, Qt.Key.Key_Escape, QtModNone))
+        assert dialog.result() == QtRejected
+
+
 @pytest.mark.gui
 def testExtModified_NComboBox(qtbot, monkeypatch):
     """Test the NComboBox class."""
diff --git a/tests/test_tools/test_tools_dictionaries.py b/tests/test_tools/test_tools_dictionaries.py
index 933f7ed2..699c715a 100644
--- a/tests/test_tools/test_tools_dictionaries.py
+++ b/tests/test_tools/test_tools_dictionaries.py
@@ -152,6 +152,4 @@ def testToolDictionaries_Main(qtbot, monkeypatch, nwGUI, fncPath):
         "Additional dictionaries found: 2"
     )
 
-    # Close
-    nwDicts._doClose()
     # qtbot.stop()