diff --git a/app/controllers/budgets/investments_controller.rb b/app/controllers/budgets/investments_controller.rb
index aaf65765f..435fae04c 100644
--- a/app/controllers/budgets/investments_controller.rb
+++ b/app/controllers/budgets/investments_controller.rb
@@ -94,7 +94,7 @@ module Budgets
 
       def set_random_seed
         if params[:order] == 'random' || params[:order].blank?
-          seed = rand(10..99) / 10.0
+          seed = rand(11..99) / 10.0
           params[:random_seed] ||= Float(seed) rescue 0
         else
           params[:random_seed] = nil
diff --git a/app/models/budget/investment.rb b/app/models/budget/investment.rb
index add7c3587..bd3e5b466 100644
--- a/app/models/budget/investment.rb
+++ b/app/models/budget/investment.rb
@@ -43,7 +43,7 @@ class Budget
     scope :sort_by_confidence_score, -> { reorder(confidence_score: :desc, id: :desc) }
     scope :sort_by_ballots,          -> { reorder(ballot_lines_count: :desc, id: :desc) }
     scope :sort_by_price,            -> { reorder(price: :desc, confidence_score: :desc, id: :desc) }
-    scope :sort_by_random,           ->(seed) { reorder("budget_investments.id % #{seed || 1}, budget_investments.id") }
+    scope :sort_by_random,           ->(seed) { reorder("budget_investments.id % #{seed.to_f&.positive? ? seed : 1}, budget_investments.id") }
 
     scope :valuation_open,              -> { where(valuation_finished: false) }
     scope :without_admin,               -> { valuation_open.where(administrator_id: nil) }