diff --git a/src/gui/views/gcal-month-view.c b/src/gui/views/gcal-month-view.c
index eca75a36..a7fcb4bb 100644
--- a/src/gui/views/gcal-month-view.c
+++ b/src/gui/views/gcal-month-view.c
@@ -1520,6 +1520,7 @@ gcal_month_view_dispose (GObject *object)
   g_clear_object (&self->kinetic_scroll_animation);
   g_clear_object (&self->row_offset_animation);
 
+  g_clear_pointer (&self->overflow.popover, gtk_widget_unparent);
   g_clear_pointer (&self->header, gtk_widget_unparent);
   g_clear_pointer (&self->week_rows, g_ptr_array_unref);