diff --git a/admin/win/msi/Nextcloud.wxs b/admin/win/msi/Nextcloud.wxs
index 38ea1632a0..a655c74cfe 100644
--- a/admin/win/msi/Nextcloud.wxs
+++ b/admin/win/msi/Nextcloud.wxs
@@ -45,7 +45,7 @@
         https://www.joyofsetup.com/2010/01/16/major-upgrades-now-easier-than-ever/
     -->
     <MajorUpgrade Schedule="afterInstallInitialize" AllowDowngrades="yes" />
-    <Property Id="REINSTALLMODE" Value="amus" />
+    <Property Id="REINSTALLMODE" Value="omus" />
 
     <Media Id="1" Cabinet="$(var.AppShortName).cab" EmbedCab="yes" />