diff --git a/packages/runtime-tools-swf-enveloped-components/src/workflowDetails/envelope/components/WorkflowDetails/WorkflowDetails.tsx b/packages/runtime-tools-swf-enveloped-components/src/workflowDetails/envelope/components/WorkflowDetails/WorkflowDetails.tsx
index be5db3021d4..5f2ea170b45 100644
--- a/packages/runtime-tools-swf-enveloped-components/src/workflowDetails/envelope/components/WorkflowDetails/WorkflowDetails.tsx
+++ b/packages/runtime-tools-swf-enveloped-components/src/workflowDetails/envelope/components/WorkflowDetails/WorkflowDetails.tsx
@@ -252,7 +252,7 @@ const WorkflowDetails: React.FC<WorkflowDetailsProps> = ({ isEnvelopeConnectedTo
   const renderWorkflowVariables = (): JSX.Element => {
     return (
       <Flex direction={{ default: "column" }} flex={{ default: "flex_1" }}>
-        {Object.keys(updateJson).length > 0 && (
+        {updateJson && Object.keys(updateJson).length > 0 && (
           <FlexItem>
             <WorkflowVariables
               displayLabel={displayLabel}
diff --git a/packages/runtime-tools-swf-enveloped-components/tests/components/WorkflowDefinitionList.test.tsx b/packages/runtime-tools-swf-enveloped-components/tests/components/WorkflowDefinitionList.test.tsx
index 6226790263e..f72efab13a2 100644
--- a/packages/runtime-tools-swf-enveloped-components/tests/components/WorkflowDefinitionList.test.tsx
+++ b/packages/runtime-tools-swf-enveloped-components/tests/components/WorkflowDefinitionList.test.tsx
@@ -18,7 +18,7 @@
  */
 
 import * as React from "react";
-import { render, waitFor, screen, fireEvent, act } from "@testing-library/react";
+import { render, waitFor, fireEvent } from "@testing-library/react";
 import "@testing-library/jest-dom";
 import WorkflowDefinitionList from "@kie-tools/runtime-tools-swf-enveloped-components/dist/workflowDefinitions/envelope/components/WorkflowDefinitionList/WorkflowDefinitionList";
 
diff --git a/packages/runtime-tools-swf-enveloped-components/tests/components/WorkflowDetails.test.tsx b/packages/runtime-tools-swf-enveloped-components/tests/components/WorkflowDetails.test.tsx
new file mode 100644
index 00000000000..f54261b947a
--- /dev/null
+++ b/packages/runtime-tools-swf-enveloped-components/tests/components/WorkflowDetails.test.tsx
@@ -0,0 +1,89 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import * as React from "react";
+import { render } from "@testing-library/react";
+import "@testing-library/jest-dom";
+import WorkflowDetails from "@kie-tools/runtime-tools-swf-enveloped-components/dist/workflowDetails/envelope/components/WorkflowDetails/WorkflowDetails";
+import { WorkflowInstance, WorkflowInstanceState } from "@kie-tools/runtime-tools-swf-gateway-api/dist/types";
+
+const mockDriver = {
+  jobsQuery: jest.fn(),
+};
+
+const sampleWorkflowDetails: WorkflowInstance = {
+  id: "6d114aaf-b599-49da-b434-f18133b40072",
+  processId: "timeout",
+  processName: "timeout",
+  variables: {
+    workflowdata: {
+      varName: "value",
+    },
+  },
+  state: WorkflowInstanceState.Active,
+  start: new Date("2024-10-18T12:25:00.192Z"),
+  lastUpdate: new Date("2024-10-18T12:25:00.192Z"),
+  endpoint: "http://localhost:4000/timeout",
+  nodes: [],
+};
+
+describe("WorkflowDetails component", () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  test("should render the workflow details correctly", () => {
+    const component = render(
+      <WorkflowDetails
+        isEnvelopeConnectedToChannel={true}
+        driver={mockDriver as any}
+        workflowDetails={sampleWorkflowDetails}
+      />
+    );
+
+    expect(component.queryByText("6d114")).toBeInTheDocument();
+  });
+
+  test.each([
+    [undefined, false],
+    [null, false],
+    [{}, false],
+    [{ workflowdata: {} }, true],
+    [sampleWorkflowDetails.variables, true],
+  ])(
+    "should render the workflow Variables card correctly when variables is `%j`",
+    (variablesMock, variablesCardVisible) => {
+      const workflowDetailsMock = { ...sampleWorkflowDetails, variables: variablesMock };
+      const component = render(
+        <WorkflowDetails
+          isEnvelopeConnectedToChannel={true}
+          driver={mockDriver as any}
+          workflowDetails={workflowDetailsMock}
+        />
+      );
+
+      if (variablesCardVisible) {
+        expect(component.queryByText("Variables")).toBeInTheDocument();
+        expect(component.queryByText("workflowdata")).toBeInTheDocument();
+      } else {
+        expect(component.queryByText("Variables")).not.toBeInTheDocument();
+      }
+    }
+  );
+});