diff --git a/browser/ui/views/sidebar/sidebar_add_item_bubble_delegate_view.cc b/browser/ui/views/sidebar/sidebar_add_item_bubble_delegate_view.cc
index 03ba175425a0..b9ca36d006c9 100644
--- a/browser/ui/views/sidebar/sidebar_add_item_bubble_delegate_view.cc
+++ b/browser/ui/views/sidebar/sidebar_add_item_bubble_delegate_view.cc
@@ -163,7 +163,6 @@ void SidebarAddItemBubbleDelegateView::AddChildViews() {
         BraveThemeProperties::COLOR_SIDEBAR_ADD_BUBBLE_HEADER_TEXT));
   }
   header->SetAutoColorReadabilityEnabled(false);
-  header->SetPreferredSize(kAddItemBubbleEntrySize);
   constexpr gfx::Insets kHeaderInsets{10, 34, 4, 8};
   header->SetBorder(views::CreateEmptyBorder(kHeaderInsets));
   header->SetHorizontalAlignment(gfx::ALIGN_LEFT);