diff --git a/SetupWix/Product.wxs b/SetupWix/Product.wxs
index 7a273c0..6c18b91 100644
--- a/SetupWix/Product.wxs
+++ b/SetupWix/Product.wxs
@@ -30,7 +30,7 @@
     -->
     <MajorUpgrade
       AllowDowngrades="no"
-      AllowSameVersionUpgrades="no"
+      AllowSameVersionUpgrades="yes"
       DowngradeErrorMessage="Eine neuere Version von [ProductName] ist bereits installiert. Das Setup wird beendet."
     />