diff --git a/templates/web/brent/errors/generic.html b/templates/web/brent/errors/generic.html
index 4d929cf3233..bfc5b6619c2 100755
--- a/templates/web/brent/errors/generic.html
+++ b/templates/web/brent/errors/generic.html
@@ -3,6 +3,7 @@
 ELSE;
     DEFAULT title = 'Error';
 END %]
+[% DEFAULT header_class = 'failure' %]
 [% INCLUDE 'header.html', title = title %]
 
 [% IF csrf_token ~%]
@@ -32,7 +33,7 @@ <h1>My Account login</h1>
         </form>
     </div>
 [% ELSE %]
-    <div class="confirmation-header confirmation-header--failure">
+    <div class="confirmation-header confirmation-header--[% header_class %]">
         <h1>[% title %]</h1>
         <p>[% message | safe %]</p>
     </div>
diff --git a/templates/web/tfl/errors/generic.html b/templates/web/tfl/errors/generic.html
index cfb9c5fb38f..f800596b934 100755
--- a/templates/web/tfl/errors/generic.html
+++ b/templates/web/tfl/errors/generic.html
@@ -3,6 +3,7 @@
 ELSE;
     DEFAULT title = 'Error';
 END %]
+[% DEFAULT header_class = 'failure' %]
 [% INCLUDE 'header.html', title = title %]
 
 [% IF csrf_token ~%]
@@ -32,7 +33,7 @@ <h1>My Account login</h1>
         </form>
     </div>
 [% ELSE %]
-    <div class="confirmation-header confirmation-header--failure">
+    <div class="confirmation-header confirmation-header--[% header_class %]">
         <h1>[% title %]</h1>
         <p>[% message | safe %]</p>
     </div>