diff --git a/t/db_dependent/Letters/TemplateToolkit.t b/t/db_dependent/Letters/TemplateToolkit.t
index 594f5689f8..3cd45e6fd2 100755
--- a/t/db_dependent/Letters/TemplateToolkit.t
+++ b/t/db_dependent/Letters/TemplateToolkit.t
@@ -658,7 +658,7 @@ EOF
                     lang            => 'default',
                     title           => "A wonderful news",
                     content         => "This is the wonderful news.",
-                    expiration_date => undef,
+                    expirationdate  => undef,
                     published_on    => $one_minute_ago
                 }
             }