diff --git a/ext/wxWidgets b/ext/wxWidgets
index cbc66053..6dd0af6b 160000
--- a/ext/wxWidgets
+++ b/ext/wxWidgets
@@ -1 +1 @@
-Subproject commit cbc6605340ee824a2cc758c2cec01f5fe3e08d6f
+Subproject commit 6dd0af6b382d1bb709370b3ef97435e91a181285
diff --git a/unittests/test_listctrl.py b/unittests/test_listctrl.py
index db2bf80c..25adabb8 100644
--- a/unittests/test_listctrl.py
+++ b/unittests/test_listctrl.py
@@ -194,6 +194,11 @@ class listctrl_Tests(wtc.WidgetTestCase):
             lc.SetItemData(0, wx._core._LONG_MAX + 100)
 
 
+    def test_listctrlDeleteAllColumns(self):
+        lc = self._makeListCtrl()
+        lc.DeleteAllColumns()
+
+
 #---------------------------------------------------------------------------