diff --git a/docs/source/upcoming_release_notes/89-tab_widget_cleanup.rst b/docs/source/upcoming_release_notes/89-tab_widget_cleanup.rst
new file mode 100644
index 0000000..611fb45
--- /dev/null
+++ b/docs/source/upcoming_release_notes/89-tab_widget_cleanup.rst
@@ -0,0 +1,22 @@
+89 tab widget cleanup
+#################
+
+API Breaks
+----------
+- N/A
+
+Features
+--------
+- N/A
+
+Bugfixes
+--------
+- Main window closes tab widget tabs when closed, so they can do their clean up
+
+Maintenance
+-----------
+- N/A
+
+Contributors
+------------
+- shilorigins
diff --git a/superscore/widgets/window.py b/superscore/widgets/window.py
index 98d13f3..62e431a 100644
--- a/superscore/widgets/window.py
+++ b/superscore/widgets/window.py
@@ -9,6 +9,7 @@
 import qtawesome as qta
 from pcdsutils.qt.callbacks import WeakPartialMethodSlot
 from qtpy import QtCore, QtWidgets
+from qtpy.QtGui import QCloseEvent
 
 from superscore.client import Client
 from superscore.model import Entry
@@ -137,3 +138,8 @@ def open(*_, **__):
             open_action.triggered.connect(open)
 
         self.menu.exec_(self.tree_view.mapToGlobal(pos))
+
+    def closeEvent(self, a0: QCloseEvent) -> None:
+        while self.tab_widget.count() > 0:
+            self.remove_tab(0)
+        super().closeEvent(a0)