diff --git a/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java b/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
index d00fb505..2500a23c 100644
--- a/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
+++ b/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
@@ -49,7 +49,7 @@ public class TiffFilePreviewImpl implements FilePreview {
             return TIFF_FILE_PREVIEW_PAGE;
         } else if ("jpg".equalsIgnoreCase(tifPreviewType) || "pdf".equalsIgnoreCase(tifPreviewType)) {
             String pdfName = fileName.substring(0, fileName.lastIndexOf(".")) + suffix +"." + "pdf" ; //生成文件添加类型后缀 防止同名文件
-            String jpgName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "jpg";
+            String jpgName = fileName.substring(0, fileName.lastIndexOf(".")) + suffix +"." + "jpg" ; //生成文件添加类型后缀 防止同名文件
             String strLocalTif = fileDir + fileName;
             String outFilePath = fileDir + pdfName;
             if ("pdf".equalsIgnoreCase(tifPreviewType)) {