diff --git a/lib/modules/models/time_living.rb b/lib/modules/models/time_living.rb
index 68742b75f..81ec89dd3 100644
--- a/lib/modules/models/time_living.rb
+++ b/lib/modules/models/time_living.rb
@@ -12,7 +12,7 @@ module Modules
 
         validate lambda {
           # 2 min <= time_living <= 12 hours
-          if 120 > time_living || time_living > 43200
+          if 120 > time_living.to_i || time_living.to_i > 43200
             errors.add(:time_living, I18n.t('flash.time_living.numericality_error'))
           end
         }
diff --git a/spec/models/product_spec.rb b/spec/models/product_spec.rb
index d8068fae6..64af554c3 100644
--- a/spec/models/product_spec.rb
+++ b/spec/models/product_spec.rb
@@ -7,7 +7,7 @@ describe Product do
     Platform.delete_all
     User.delete_all
     Product.delete_all
-    FileUtils.rm_rf(APP_CONFIG['root_path'])
+    init_test_root
     # Need for validate_uniqueness_of check
     FactoryGirl.create(:product)
   end
@@ -28,7 +28,7 @@ describe Product do
     Platform.delete_all
     User.delete_all
     Product.delete_all
-    FileUtils.rm_rf(APP_CONFIG['root_path'])
+    clear_test_root
   end
 
 end