diff --git a/t/lib/TestBuilder.pm b/t/lib/TestBuilder.pm
index d42cb03346..5937e0f664 100644
--- a/t/lib/TestBuilder.pm
+++ b/t/lib/TestBuilder.pm
@@ -473,6 +473,13 @@ sub _gen_default_values {
         Item => {
             more_subfields_xml => undef,
         },
+        Category => {
+            enrolmentfee => 0,
+            reservefee   => 0,
+        },
+        Itemtype => {
+            rentalcharge => 0,
+        },
     };
 }