diff --git a/app/api/enhance/route.ts b/app/api/enhance/route.ts
index 2747768..f2e1355 100644
--- a/app/api/enhance/route.ts
+++ b/app/api/enhance/route.ts
@@ -256,21 +256,24 @@ export async function POST(request: NextRequest) {
       const controller = new AbortController();
       const timeoutId = setTimeout(() => controller.abort(), 60000);
       
-      // 将FormData转换为ArrayBuffer（fetch需要）
-      const formDataBuffer = await new Promise<ArrayBuffer>((resolve, reject) => {
+      // 将FormData转换为Buffer（form-data包是stream）
+      const formDataBuffer = await new Promise<Buffer>((resolve, reject) => {
         const chunks: Buffer[] = [];
         formData.on("data", (chunk: Buffer) => chunks.push(chunk));
-        formData.on("end", () => {
-          const buffer = Buffer.concat(chunks);
-          resolve(buffer.buffer.slice(buffer.byteOffset, buffer.byteOffset + buffer.byteLength));
-        });
+        formData.on("end", () => resolve(Buffer.concat(chunks)));
         formData.on("error", reject);
       });
       
+      // 将Buffer转换为ArrayBuffer用于fetch
+      const arrayBuffer = formDataBuffer.buffer.slice(
+        formDataBuffer.byteOffset,
+        formDataBuffer.byteOffset + formDataBuffer.byteLength
+      );
+      
       response = await fetch(enhanceUrl, {
         method: "POST",
         headers,
-        body: formDataBuffer,
+        body: arrayBuffer,
         signal: controller.signal,
       });