diff --git a/src/com/engine/salary/web/SISchemeController.java b/src/com/engine/salary/web/SISchemeController.java
index 66bab3825..bcf226914 100644
--- a/src/com/engine/salary/web/SISchemeController.java
+++ b/src/com/engine/salary/web/SISchemeController.java
@@ -233,6 +233,7 @@ public class SISchemeController {
                 workbook.write(outputStream);
                 outputStream.flush();
             };
+            response.setContentType("application/octet-stream");
             return Response.ok(output)
                     .header("Content-disposition", "attachment;filename=" + fileName)
                     .header("Cache-Control", "no-cache").build();
@@ -313,6 +314,7 @@ public class SISchemeController {
                 workbook.write(outputStream);
                 outputStream.flush();
             };
+            response.setContentType("application/octet-stream");
             return Response.ok(output)
                     .header("Content-disposition", "attachment;filename=" + fileName)
                     .header("Cache-Control", "no-cache").build();