diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb611a353..1c021e67c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- 修复提示词编辑读取可选节点元数据时导致的前端生产构建失败。
+
 ## v1.0.33
 
 - 新增功能开放运维开关和管理员添加用户能力，并优化后台、创作页与移动端页面布局。
diff --git a/web/src/pages/canvas/use-canvas-node-editor.ts b/web/src/pages/canvas/use-canvas-node-editor.ts
index 7243a7950..500e53d83 100644
--- a/web/src/pages/canvas/use-canvas-node-editor.ts
+++ b/web/src/pages/canvas/use-canvas-node-editor.ts
@@ -132,7 +132,7 @@ export function useCanvasNodeEditor({
             const metadata = moderationFailure && prompt !== previousPrompt
                 ? resetGenerationTaskMetadata(node.metadata, node.metadata?.content ? "success" : "idle")
                 : node.metadata;
-            const promptTemplateMetadata = prompt !== previousPrompt && metadata.promptTemplateOperation
+            const promptTemplateMetadata = prompt !== previousPrompt && metadata?.promptTemplateOperation
                 ? { promptTemplateOperation: undefined, promptTemplateVariables: undefined }
                 : {};
             return { ...node, metadata: hasExistingContent ? { ...metadata, ...promptTemplateMetadata, composerContent: prompt } : { ...metadata, ...promptTemplateMetadata, prompt, composerContent: prompt } };