diff --git a/category_number_one/dmn-boolean-test/boolean-test.bpmn b/category_number_one/dmn-boolean-test/boolean-test.bpmn
index c9fab19a..4ca53aa0 100644
--- a/category_number_one/dmn-boolean-test/boolean-test.bpmn
+++ b/category_number_one/dmn-boolean-test/boolean-test.bpmn
@@ -16,7 +16,7 @@
     <bpmn:scriptTask id="Activity_00rqhb1" name="Set Values">
       <bpmn:incoming>Flow_0n9fche</bpmn:incoming>
       <bpmn:outgoing>Flow_0dpcshe</bpmn:outgoing>
-      <bpmn:script>a = 1</bpmn:script>
+      <bpmn:script>a = -1</bpmn:script>
     </bpmn:scriptTask>
     <bpmn:sequenceFlow id="Flow_1fddirq" sourceRef="Activity_15gcg70" targetRef="Activity_0g7tg9d" />
     <bpmn:manualTask id="Activity_1pldlic" name="Show Result">