diff --git a/app/controllers/concerns/steps_actions.rb b/app/controllers/concerns/steps_actions.rb
index 2676a2202..5f25c8709 100644
--- a/app/controllers/concerns/steps_actions.rb
+++ b/app/controllers/concerns/steps_actions.rb
@@ -18,7 +18,7 @@ module StepsActions
     new_checklists = step_params[:checklists_attributes]
 
     if new_checklists
-      new_checklists.each do |e|
+      new_checklists.to_h.each do |e|
         list = PreviousChecklist.new(
           e.second[:id].to_i,
           e.second[:name]
diff --git a/app/controllers/steps_controller.rb b/app/controllers/steps_controller.rb
index a6b65fb06..d80f8ab44 100644
--- a/app/controllers/steps_controller.rb
+++ b/app/controllers/steps_controller.rb
@@ -547,9 +547,9 @@ class StepsController < ApplicationController
   # Delete the step table
   def delete_step_tables(params)
     return unless params[:tables_attributes].present?
-    params[:tables_attributes].each do |table|
-      next unless table.second['_destroy']
-      table_to_destroy = Table.find_by(id: table.second['id'])
+    params[:tables_attributes].each do |_, table|
+      next unless table['_destroy']
+      table_to_destroy = Table.find_by_id(table['id'])
       table_to_destroy.report_elements.destroy_all
     end
   end