diff --git a/web/app/components/workflow/store/workflow/workflow-slice.ts b/web/app/components/workflow/store/workflow/workflow-slice.ts
index 5b8eed68ca6..7dfeddf87e3 100644
--- a/web/app/components/workflow/store/workflow/workflow-slice.ts
+++ b/web/app/components/workflow/store/workflow/workflow-slice.ts
@@ -11,6 +11,8 @@ type PreviewRunningData = WorkflowRunningData & {
   resultTabActive?: boolean
   resultText?: string
   resultTextSelectorKey?: string
+  reasoningContent?: Record<string, string>
+  reasoningFinished?: boolean
   // human input form schema or data cached when node is in 'Paused' status
   extraContentAndFormData?: Record<string, unknown>
 }