diff --git a/app/helpers/dmsf_helper.rb b/app/helpers/dmsf_helper.rb
index 2d3a1a4c..99576739 100644
--- a/app/helpers/dmsf_helper.rb
+++ b/app/helpers/dmsf_helper.rb
@@ -63,7 +63,8 @@ module DmsfHelper
     else
       cls = Redmine::MimeType.css_class_of(filename)
     end
-    cls + ' dmsf-icon-file'
+    cls << ' dmsf-icon-file' if cls
+    cls
   end
 
   def plugin_asset_path(plugin, asset_type, source)
diff --git a/app/views/dmsf/_dir_trash.html.erb b/app/views/dmsf/_dir_trash.html.erb
index 12760578..bc581341 100644
--- a/app/views/dmsf/_dir_trash.html.erb
+++ b/app/views/dmsf/_dir_trash.html.erb
@@ -81,7 +81,7 @@
         :data => {:confirm => l(:text_are_you_sure)},
         :title => l(:title_delete),
         :method => :delete,
-        :class => 'icon-only icon-delete') %>
+        :class => 'icon-only icon-del') %>
     <% end %>
   <% end %>
 </td>
diff --git a/app/views/dmsf/_file_trash.html.erb b/app/views/dmsf/_file_trash.html.erb
index 5844678f..55f54355 100644
--- a/app/views/dmsf/_file_trash.html.erb
+++ b/app/views/dmsf/_file_trash.html.erb
@@ -76,7 +76,7 @@
       :data => {:confirm => l(:text_are_you_sure)},
       :method => :delete,
       :title => l(:title_delete),
-      :class => 'icon-only icon-delete') %>
+      :class => 'icon-only icon-del') %>
   <% end %>
 </td>
 <td class="hol">1</td>
diff --git a/app/views/dmsf_files/show.html.erb b/app/views/dmsf_files/show.html.erb
index 73c2dc14..9dd32195 100644
--- a/app/views/dmsf_files/show.html.erb
+++ b/app/views/dmsf_files/show.html.erb
@@ -81,13 +81,13 @@
     <div class="fg-toolbar ui-toolbar ui-widget-header ui-corner-tl ui-corner-tr ui-helper-clearfix">
       <div class="dataTables_lenght">
         <div class="dmsf_controls" style="float: right">
-          <%= link_to_function image_tag('rev_downloads.png', :plugin => 'redmine_dmsf'),
+          <%= link_to_function image_tag('group.png'),
             "$('#revision_access-#{revision.id}').toggle()",
             :title => l(:title_download_entries) %>
-          <%= link_to image_tag('rev_download.png', :plugin => 'redmine_dmsf'),
+          <%= link_to image_tag('download.png'),
             view_dmsf_file_path(@file, :download => revision),
             :title => l(:title_title_version_version_download, :title => h(revision.title), :version => revision.version) %>
-          <%= link_to image_tag('rev_delete.png', :plugin => 'redmine_dmsf'),
+          <%= link_to image_tag('delete.png'),
             delete_revision_path(revision),
             :data => {:confirm => l(:text_are_you_sure)},
             :title => l(:title_delete_revision) if @file_delete_allowed && (@file.dmsf_file_revisions.visible.count > 1) %>
diff --git a/assets/images/rev_delete.png b/assets/images/rev_delete.png
deleted file mode 100644
index 8c631734..00000000
Binary files a/assets/images/rev_delete.png and /dev/null differ
diff --git a/assets/images/rev_download.png b/assets/images/rev_download.png
deleted file mode 100644
index c3c74e1a..00000000
Binary files a/assets/images/rev_download.png and /dev/null differ
diff --git a/assets/images/rev_downloads.png b/assets/images/rev_downloads.png
deleted file mode 100644
index d1d9debc..00000000
Binary files a/assets/images/rev_downloads.png and /dev/null differ
diff --git a/assets/stylesheets/redmine_dmsf.css b/assets/stylesheets/redmine_dmsf.css
index 1bcfba2c..3c822a67 100644
--- a/assets/stylesheets/redmine_dmsf.css
+++ b/assets/stylesheets/redmine_dmsf.css
@@ -199,9 +199,6 @@ div.dmsf_revision_inner_box .attribute .label {
 .icon-wf-none { background-image: url(../images/none.png); }
 .icon-wf-waiting { background-image: url(../images/waiting_for_approval.png); }
 .icon-wf-assigned { background-image: url(../images/assigned.png); }
-.icon-delete { background-image: url(../images/rev_delete.png); }
-.icon-download { background-image: url(../images/rev_download.png); }
-.icon-downloads { background-image: url(../images/rev_downloads.png); }
 .icon-link { background-image: url(../../../images/link.png); }
 .icon-approvalworkflows { background-image: url(../../../images/ticket_go.png); }