diff --git a/qt/aqt/stats.py b/qt/aqt/stats.py
index 2d64208d1..646d42fd5 100644
--- a/qt/aqt/stats.py
+++ b/qt/aqt/stats.py
@@ -34,7 +34,11 @@ class DeckStats(QDialog):
         self.setMinimumWidth(700)
         f = self.form
         if theme_manager.night_mode and not theme_manager.macos_dark_mode():
-            self.setStyleSheet("QGroupBox { padding-top: 0; }")
+            # the grouping box renders incorrectly in the fusion theme. 5.9+
+            # 5.13 behave differently to 5.14, but it looks bad in either case,
+            # and adjusting the top margin makes the 'save PDF' button show in
+            # the wrong place, so for now we just disable the border instead
+            self.setStyleSheet("QGroupBox { border: 0; }")
         f.setupUi(self)
         restoreGeom(self, self.name)
         b = f.buttonBox.addButton(_("Save PDF"), QDialogButtonBox.ActionRole)