diff --git a/app/controllers/admin/cancerpredicts_controller.rb b/app/controllers/admin/cancerpredicts_controller.rb
index 324f6f3..6c086d9 100644
--- a/app/controllers/admin/cancerpredicts_controller.rb
+++ b/app/controllers/admin/cancerpredicts_controller.rb
@@ -97,7 +97,7 @@ class Admin::CancerpredictsController < OrbitAdminController
 										@form_to_show.form_show[ num.to_s ][ sub_property ][params[:locale].to_s] = []
 									end
 								end
-								if(property["old_num"] != nil && property["old_num"] != num.to_s)
+								if(property["old_num"].present? && property["old_num"] != num.to_s)
 									other_in_use_locales.each do |locale|
 										@form_to_show.form_show[ num.to_s ][ sub_property ][locale] = @form_to_show.form_show_was[ property["old_num"] ][ sub_property ][locale]
 									end
@@ -185,7 +185,7 @@ class Admin::CancerpredictsController < OrbitAdminController
 										@form_to_show.form_show_in_result[ num.to_s ][ sub_property ][params[:locale].to_s] = []
 									end
 								end
-								if(property["old_num"] != nil && property["old_num"] != num.to_s)
+								if(property["old_num"].present? && property["old_num"] != num.to_s)
 									other_in_use_locales.each do |locale|
 										@form_to_show.form_show_in_result[ num.to_s ][ sub_property ][locale] = @form_to_show.form_show_was[ property["old_num"] ][ sub_property ][locale]
 									end