diff --git a/build/windows/nagstamon.iss b/build/windows/nagstamon.iss
index 96b8f4a4..80440df9 100644
--- a/build/windows/nagstamon.iss
+++ b/build/windows/nagstamon.iss
@@ -23,7 +23,7 @@ Compression=lzma
 SolidCompression=true
 SourceDir={#source}
 ArchitecturesAllowed={#archs_allowed}
-ArchitecturesInstallIn64BitMode=x64
+ArchitecturesInstallIn64BitMode=x64compatible
 CloseApplications=no
 WizardStyle=modern
 [Icons]