diff --git a/web/src/i18n/en.ts b/web/src/i18n/en.ts
index 6676918fb..63a8505d5 100644
--- a/web/src/i18n/en.ts
+++ b/web/src/i18n/en.ts
@@ -679,6 +679,7 @@ export const en = {
     ingestGuide: "Read the ingest guide →",
     ingestGuideTitle: "Ingest interface guide",
     endpointField: "Endpoint URL",
+    feedPlaceholder: "https://your-service/utopia-feed",
     endpointCopied: "Endpoint URL copied",
     copyEndpoint: "Click to copy the full URL",
     // api 来源的推送状态（queued/running 不会出现，仅为类型完备）
diff --git a/web/src/i18n/zh.ts b/web/src/i18n/zh.ts
index cc493763a..554e636e6 100644
--- a/web/src/i18n/zh.ts
+++ b/web/src/i18n/zh.ts
@@ -617,6 +617,7 @@ export const zh: Strings = {
     ingestGuide: "阅读摄入接口指南 →",
     ingestGuideTitle: "摄入接口指南",
     endpointField: "接口地址",
+    feedPlaceholder: "https://your-service/utopia-feed",
     endpointCopied: "接口地址已复制",
     copyEndpoint: "点击复制完整地址",
     pushStatus: {
diff --git a/web/src/pages/Library.tsx b/web/src/pages/Library.tsx
index 31d815f5c..3fe65b452 100644
--- a/web/src/pages/Library.tsx
+++ b/web/src/pages/Library.tsx
@@ -1578,7 +1578,7 @@ function SourceModal({
               {field(
                 S.library.endpointField,
                 <Input className="w-full font-mono"
-                  placeholder="https://your-service/utopia-feed"
+                  placeholder={S.library.feedPlaceholder}
                   value={endpoint}
                   onChange={(e) => setEndpoint(e.target.value)}
                 />,