diff --git a/app/controllers/budgets/investments_controller.rb b/app/controllers/budgets/investments_controller.rb
index e3d82cb6f..3953def8c 100644
--- a/app/controllers/budgets/investments_controller.rb
+++ b/app/controllers/budgets/investments_controller.rb
@@ -135,6 +135,9 @@ module Budgets
           @heading = @budget.headings.find_by_slug_or_id! params[:heading_id]
           @assigned_heading = @ballot&.heading_for_group(@heading.group)
           load_map
+        elsif @budget.single_heading?
+          @heading = @budget.headings.first
+          load_map
         end
       end
 
diff --git a/spec/system/budgets/investments_spec.rb b/spec/system/budgets/investments_spec.rb
index 002d17dc2..615cf78ec 100644
--- a/spec/system/budgets/investments_spec.rb
+++ b/spec/system/budgets/investments_spec.rb
@@ -1356,6 +1356,9 @@ describe "Budget Investments" do
         expect(page).to have_content investment2.title
         expect(page).to have_content "€20,000"
       end
+
+      expect(page).to have_link "Submit my ballot"
+      expect(page).to have_content "STILL AVAILABLE TO YOU €666,666"
     end
 
     scenario "Order by cost (only when balloting)" do