diff --git a/t/lib/TestBuilder.pm b/t/lib/TestBuilder.pm
index 630fab0cfb..57506b11d7 100644
--- a/t/lib/TestBuilder.pm
+++ b/t/lib/TestBuilder.pm
@@ -624,6 +624,8 @@ sub _gen_default_values {
         },
         Branch => {
             pickup_location => 0,
+            opacuserjs      => q{},
+            opacusercss     => q{},
         },
         Reserve => {
             non_priority  => 0,