diff --git a/core/src/main/java/hudson/model/UpdateSite.java b/core/src/main/java/hudson/model/UpdateSite.java
index 7f699c717f8f01c32e3ca0d7827c6d347f6fca73..371e360ad03f79750fd26337e7d7133133613956 100644
--- a/core/src/main/java/hudson/model/UpdateSite.java
+++ b/core/src/main/java/hudson/model/UpdateSite.java
@@ -622,7 +622,7 @@ public class UpdateSite {
          */
         public void doDowngrade(StaplerResponse rsp) throws IOException {
             deployBackup();
-            rsp.sendRedirect("../updateCenter/");
+            rsp.sendRedirect2("../..");
         }
     }