diff --git a/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java b/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java
index 6a1d899..9b36eea 100644
--- a/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java
+++ b/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java
@@ -593,9 +593,8 @@ public class FileServiceImpl extends AbstractService implements IFileService {
             case "png":
                 contentType = "image/png";
                 break;
+            case "blob":
             case "jpg":
-                contentType = "image/jpeg";
-                break;
             case "jpeg":
                 contentType = "image/jpeg";
                 break;