diff --git a/app/models/dmsf_file.rb b/app/models/dmsf_file.rb
index e9a8c788..daf7c39d 100644
--- a/app/models/dmsf_file.rb
+++ b/app/models/dmsf_file.rb
@@ -81,7 +81,7 @@ class DmsfFile < ActiveRecord::Base
   before_create :default_values
 
   def default_values
-    if (Setting.plugin_redmine_dmsf['dmsf_default_notifications'] == '1') && (!dmsf_folder || !dmsf_folder.system)
+    if Setting.plugin_redmine_dmsf['dmsf_default_notifications'].present? && (!dmsf_folder || !dmsf_folder.system)
       self.notification = true
     end
   end
diff --git a/app/models/dmsf_folder.rb b/app/models/dmsf_folder.rb
index 351ba636..7168616b 100644
--- a/app/models/dmsf_folder.rb
+++ b/app/models/dmsf_folder.rb
@@ -123,7 +123,7 @@ class DmsfFolder < ActiveRecord::Base
   end
 
   def default_values
-    if Setting.plugin_redmine_dmsf['dmsf_default_notifications'] == '1' && !system
+    if Setting.plugin_redmine_dmsf['dmsf_default_notifications'].present? && !system
       self.notification = true
     end
   end
diff --git a/app/views/dmsf/_main.html.erb b/app/views/dmsf/_main.html.erb
index ef26a2a4..ea84fd45 100644
--- a/app/views/dmsf/_main.html.erb
+++ b/app/views/dmsf/_main.html.erb
@@ -93,7 +93,7 @@
 <% unless @folder && @folder.system %>
     <% other_formats_links do |f| %>
       <%= f.link_to 'CSV', url: { action: :show, id: @project, folder_id: @folder, encoding: Encoding::UTF_8 } if @project %>
-      <% if Setting.plugin_redmine_dmsf['dmsf_webdav'] == '1' %>
+      <% if Setting.plugin_redmine_dmsf['dmsf_webdav'].present? %>
         <span>
           <%= link_to 'WebDAV', webdav_url(@project, @folder) %>
         </span>
diff --git a/app/views/dmsf_context_menus/_file.html.erb b/app/views/dmsf_context_menus/_file.html.erb
index 263a910a..b2c288c2 100644
--- a/app/views/dmsf_context_menus/_file.html.erb
+++ b/app/views/dmsf_context_menus/_file.html.erb
@@ -67,7 +67,7 @@
    ids: params[:ids], email_entries: true), method: :post, class: 'icon icon-email',
    disabled: !email_allowed %>
 </li>
-<% if Setting.plugin_redmine_dmsf['dmsf_webdav'] == '1' %>
+<% if Setting.plugin_redmine_dmsf['dmsf_webdav'].present? %>
   <li>
     <% if dmsf_file.last_revision && dmsf_file.last_revision.protocol %>
       <% url = "#{dmsf_file.last_revision.protocol}:ofe|u|#{Setting.protocol.strip}://#{Setting.host_name.strip}/dmsf/webdav/#{Addressable::URI.escape(RedmineDmsf::Webdav::ProjectResource.create_project_name(dmsf_file.project))}/" %>
diff --git a/lib/redmine_dmsf/patches/project_patch.rb b/lib/redmine_dmsf/patches/project_patch.rb
index d2b34879..de2d4888 100644
--- a/lib/redmine_dmsf/patches/project_patch.rb
+++ b/lib/redmine_dmsf/patches/project_patch.rb
@@ -73,7 +73,7 @@ module RedmineDmsf
 
       def set_default_dmsf_notification
         if self.new_record?
-          if !self.dmsf_notification && (Setting.plugin_redmine_dmsf['dmsf_default_notifications'] == '1')
+          if !self.dmsf_notification && Setting.plugin_redmine_dmsf['dmsf_default_notifications'].present?
             self.dmsf_notification = true
           end
         end