diff --git a/efck/_qt/pyqt5.py b/efck/_qt/pyqt5.py
index d3313fa..aa3495f 100644
--- a/efck/_qt/pyqt5.py
+++ b/efck/_qt/pyqt5.py
@@ -56,6 +56,7 @@
     QListView,
     QListWidget,
     QListWidgetItem,
+    QPushButton,
     QScrollArea,
     QSizeGrip,
     QSlider,
diff --git a/efck/_qt/pyqt6.py b/efck/_qt/pyqt6.py
index cf9ddae..de09656 100644
--- a/efck/_qt/pyqt6.py
+++ b/efck/_qt/pyqt6.py
@@ -56,6 +56,7 @@
     QListView,
     QListWidget,
     QListWidgetItem,
+    QPushButton,
     QScrollArea,
     QSizeGrip,
     QSlider,
diff --git a/efck/_qt/pyside6.py b/efck/_qt/pyside6.py
index 34037b6..2d44785 100644
--- a/efck/_qt/pyside6.py
+++ b/efck/_qt/pyside6.py
@@ -59,6 +59,7 @@
     QListView,
     QListWidget,
     QListWidgetItem,
+    QPushButton,
     QScrollArea,
     QSizeGrip,
     QSlider,
diff --git a/efck/_qt/qtpy.py b/efck/_qt/qtpy.py
index a13cafc..c5939bb 100644
--- a/efck/_qt/qtpy.py
+++ b/efck/_qt/qtpy.py
@@ -56,6 +56,7 @@
     QListView,
     QListWidget,
     QListWidgetItem,
+    QPushButton,
     QScrollArea,
     QSizeGrip,
     QSlider,
diff --git a/efck/gui.py b/efck/gui.py
index a1f2609..6751c07 100644
--- a/efck/gui.py
+++ b/efck/gui.py
@@ -151,6 +151,15 @@ def __init__(self, parent):
         corner_widget = CornerWidget(self)
         self.setCornerWidget(corner_widget, Qt.Corner.TopLeftCorner)
 
+        close_button = QPushButton(
+            icon=self.style().standardIcon(QStyle.StandardPixmap.SP_TitleBarCloseButton),
+            flat=True,
+            toolTip='Close',
+            parent=self,
+        )
+        close_button.clicked.connect(QApplication.instance().quit)
+        self.setCornerWidget(close_button, Qt.Corner.TopRightCorner)
+
         # Populate tabs
 
         from .tab import Tab