diff --git a/cmd/admin-handlers.go b/cmd/admin-handlers.go
index 81983835e..7ec55ca8e 100644
--- a/cmd/admin-handlers.go
+++ b/cmd/admin-handlers.go
@@ -141,9 +141,9 @@ func (a adminAPIHandlers) ServerUpdateHandler(w http.ResponseWriter, r *http.Req
 		}
 
 		if runtime.GOOS == "windows" {
-			u.Path = path.Dir(u.Path) + "minio.exe"
+			u.Path = path.Dir(u.Path) + SlashSeparator + "minio.exe"
 		} else {
-			u.Path = path.Dir(u.Path) + "minio"
+			u.Path = path.Dir(u.Path) + SlashSeparator + "minio"
 		}
 
 		updateURL = u.String()