diff --git a/selfdrive/ui/mici/widgets/dialog.py b/selfdrive/ui/mici/widgets/dialog.py
index 26845765c3..b11056f993 100644
--- a/selfdrive/ui/mici/widgets/dialog.py
+++ b/selfdrive/ui/mici/widgets/dialog.py
@@ -40,11 +40,6 @@ class BigDialogBase(NavWidget, abc.ABC):
       # move to right side
       self._right_btn._rect.x = self._rect.x + self._rect.width - self._right_btn._rect.width
 
-  def hide_event(self):
-    # Free reference to self to allow refcount to go to zero
-    super().hide_event()
-    self.set_back_callback(None)
-
   def _render(self, _) -> DialogResult:
     """
     Allows `gui_app.set_modal_overlay(BigDialog(...))`.
@@ -168,11 +163,6 @@ class BigInputDialog(BigDialogBase):
         confirm_callback(self._keyboard.text())
     self._confirm_callback = confirm_callback_wrapper
 
-  def hide_event(self):
-    # Free reference to self to allow refcount to go to zero
-    super().hide_event()
-    self._confirm_callback = None
-
   def _update_state(self):
     super()._update_state()
 
diff --git a/system/ui/widgets/__init__.py b/system/ui/widgets/__init__.py
index efa35bc016..546c682f33 100644
--- a/system/ui/widgets/__init__.py
+++ b/system/ui/widgets/__init__.py
@@ -252,7 +252,7 @@ class NavWidget(Widget, abc.ABC):
   def set_back_enabled(self, enabled: bool | Callable[[], bool]) -> None:
     self._back_enabled = enabled
 
-  def set_back_callback(self, callback: Callable[[], None] | None) -> None:
+  def set_back_callback(self, callback: Callable[[], None]) -> None:
     self._back_callback = callback
 
   def _handle_mouse_event(self, mouse_event: MouseEvent) -> None: