diff --git a/decidim-budgets/app/commands/decidim/budgets/add_line_item.rb b/decidim-budgets/app/commands/decidim/budgets/add_line_item.rb
index 551734bf102f2..388fc87a78f8f 100644
--- a/decidim-budgets/app/commands/decidim/budgets/add_line_item.rb
+++ b/decidim-budgets/app/commands/decidim/budgets/add_line_item.rb
@@ -45,7 +45,7 @@ def add_line_item
       end
 
       def exceeds_budget?
-        order.allocation_for(project) + order.total > project.budget.total_budget
+        order.allocation_for(project) + order.total > order.available_allocation
       end
 
       def voting_not_enabled?