diff --git a/DDUserManager/SetupWix/Product.wxs b/DDUserManager/SetupWix/Product.wxs
index 2163d04..55b23ae 100644
--- a/DDUserManager/SetupWix/Product.wxs
+++ b/DDUserManager/SetupWix/Product.wxs
@@ -20,7 +20,7 @@
 
     <MajorUpgrade
       AllowDowngrades="no"
-      AllowSameVersionUpgrades="no"
+      AllowSameVersionUpgrades="yes"
       DowngradeErrorMessage="Eine neuere Version von [ProductName] ist bereits installiert. Das Setup wird beendet."
     />