diff --git a/app/controllers/budgets/investments_controller.rb b/app/controllers/budgets/investments_controller.rb
index ebf14d94b..36f9f5c6d 100644
--- a/app/controllers/budgets/investments_controller.rb
+++ b/app/controllers/budgets/investments_controller.rb
@@ -77,7 +77,8 @@ module Budgets
       def set_random_seed
         if params[:order] == 'random' || params[:order].blank?
           params[:random_seed] ||= rand(99)/100.0
-          Budget::Investment.connection.execute "select setseed(#{params[:random_seed]})"
+          seed = Budget::Investment.connection.quote(params[:random_seed])
+          Budget::Investment.connection.execute("select setseed(#{seed})")
         else
           params[:random_seed] = nil
         end