diff --git a/kicc-platform/kicc-platform-biz/kicc-system-biz/src/main/java/com/cloud/kicc/system/service/impl/ImContentServiceImpl.java b/kicc-platform/kicc-platform-biz/kicc-system-biz/src/main/java/com/cloud/kicc/system/service/impl/ImContentServiceImpl.java
index b34bcded..494e471b 100644
--- a/kicc-platform/kicc-platform-biz/kicc-system-biz/src/main/java/com/cloud/kicc/system/service/impl/ImContentServiceImpl.java
+++ b/kicc-platform/kicc-platform-biz/kicc-system-biz/src/main/java/com/cloud/kicc/system/service/impl/ImContentServiceImpl.java
@@ -91,7 +91,7 @@ public class ImContentServiceImpl extends ServiceImpl<ImContentMapper, ImContent
             imContent.setFiles(sendOssOssFile.getId());
 
             // 语音转文字
-            File voiceFile = File.createTempFile(sendFileName, null);
+            File voiceFile = File.createTempFile(sendFileName, StrUtil.DOT + FileUtil.extName(file.getOriginalFilename()));
             CreateTranscriptionRequest request = CreateTranscriptionRequest.builder()
                     .model("whisper-1")
                     .language("zh")