diff --git a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
index 78c9c4614..02b78ed68 100644
--- a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
@@ -168,15 +168,15 @@ class App.TicketZoom extends App.Controller
         # show error message
         if status is 401 || statusText is 'Unauthorized'
           @taskHead      = '» ' + App.i18n.translateInline('Unauthorized') + ' «'
-          @taskIconClass = 'error'
+          @taskIconClass = 'diagonal-cross'
           @html App.view('generic/error/unauthorized')( objectName: 'Ticket' )
         else if status is 404 || statusText is 'Not Found'
           @taskHead      = '» ' + App.i18n.translateInline('Not Found') + ' «'
-          @taskIconClass = 'error'
+          @taskIconClass = 'diagonal-cross'
           @html App.view('generic/error/not_found')( objectName: 'Ticket' )
         else
           @taskHead      = '» ' + App.i18n.translateInline('Error') + ' «'
-          @taskIconClass = 'error'
+          @taskIconClass = 'diagonal-cross'
 
           if !detail
             detail = 'General communication error, maybe internet is not available!'
diff --git a/app/assets/javascripts/app/views/generic/error/generic.jst.eco b/app/assets/javascripts/app/views/generic/error/generic.jst.eco
index 3ee886f7f..4ce46e3f0 100644
--- a/app/assets/javascripts/app/views/generic/error/generic.jst.eco
+++ b/app/assets/javascripts/app/views/generic/error/generic.jst.eco
@@ -1,4 +1,4 @@
 <div class="fullscreenMessage">
-  <svg class="icon icon-error"><use xlink:href="#icon-diagonal-cross" /></svg>
+  <svg class="icon-error icon-diagonal-cross"><use xlink:href="#icon-diagonal-cross" /></svg>
   <h2><%- @T('Status Code') %>: <%= @status %>. <%= @detail %></h2>
 </div>
\ No newline at end of file
diff --git a/app/assets/javascripts/app/views/generic/error/not_found.jst.eco b/app/assets/javascripts/app/views/generic/error/not_found.jst.eco
index 712731661..19f720785 100644
--- a/app/assets/javascripts/app/views/generic/error/not_found.jst.eco
+++ b/app/assets/javascripts/app/views/generic/error/not_found.jst.eco
@@ -1,4 +1,4 @@
 <div class="flex fullscreenMessage">
-  <svg class="icon icon-error"><use xlink:href="#icon-diagonal-cross" /></svg>
+  <svg class="icon-error icon-diagonal-cross"><use xlink:href="#icon-diagonal-cross" /></svg>
   <h2><%- @T('Opps.. I\'m sorry, but I can\'t find this %s.', @objectName ) %></h2>
 </div>
\ No newline at end of file
diff --git a/app/assets/javascripts/app/views/generic/error/unauthorized.jst.eco b/app/assets/javascripts/app/views/generic/error/unauthorized.jst.eco
index bfb0c9e21..3ad3a7033 100644
--- a/app/assets/javascripts/app/views/generic/error/unauthorized.jst.eco
+++ b/app/assets/javascripts/app/views/generic/error/unauthorized.jst.eco
@@ -1,4 +1,4 @@
 <div class="flex fullscreenMessage">
-  <svg class="icon icon-error"><use xlink:href="#icon-diagonal-cross" /></svg>
+  <svg class="icon-error icon-diagonal-cross"><use xlink:href="#icon-diagonal-cross" /></svg>
   <h2><%- @T('Opps.. I\'m sorry, but you have insufficient rights to open this %s.', @objectName ) %></h2>
 </div>
\ No newline at end of file
diff --git a/app/assets/stylesheets/zammad.css.scss b/app/assets/stylesheets/zammad.css.scss
index 0d1fe26a3..226cdeb19 100644
--- a/app/assets/stylesheets/zammad.css.scss
+++ b/app/assets/stylesheets/zammad.css.scss
@@ -1808,6 +1808,7 @@ footer {
     align-items: center;
     justify-content: center;
     position: relative;
+    width: 16px;
   }
 
   .nav-tab-icon .icon {
@@ -1816,6 +1817,12 @@ footer {
     fill: #808080;
   }
 
+  .nav-tab-icon .icon-diagonal-cross {
+    fill: #F35910;
+    width: 12px;
+    height: 12px;
+  }
+
   .nav-tab-icon .modified-inner-circle {
     position: absolute;
     left: 0;