diff --git a/misc/category_number_one/log-demo/log-demo.bpmn b/misc/category_number_one/log-demo/log-demo.bpmn
index 6f538ecc..07627d92 100644
--- a/misc/category_number_one/log-demo/log-demo.bpmn
+++ b/misc/category_number_one/log-demo/log-demo.bpmn
@@ -22,6 +22,7 @@
     <bpmn:scriptTask id="Activity_1qzl64v" name="hot script">
       <bpmn:incoming>Flow_0yjzo4j</bpmn:incoming>
       <bpmn:outgoing>Flow_1rjosdi</bpmn:outgoing>
+      <bpmn:script>a = 1</bpmn:script>
     </bpmn:scriptTask>
   </bpmn:process>
   <bpmndi:BPMNDiagram id="BPMNDiagram_1">