diff --git a/win/Inno_Setup_Wizard/BuildInnoSetupInstaller.cmake b/win/Inno_Setup_Wizard/BuildInnoSetupInstaller.cmake
index 393df0f96..3d7de2b87 100644
--- a/win/Inno_Setup_Wizard/BuildInnoSetupInstaller.cmake
+++ b/win/Inno_Setup_Wizard/BuildInnoSetupInstaller.cmake
@@ -12,10 +12,10 @@
 
 if( BUILDING_64_BIT )
     set( INSTALLER_SUFFIX "x64" )
-    set( INSTALLER_X64_MODE "ArchitecturesInstallIn64BitMode=x64")
+    set( INSTALLER_X64_MODE "ArchitecturesInstallIn64BitMode=x64" )
 else()
     set( INSTALLER_SUFFIX "x86" )
-    set( INSTALLER_X64_MODE "ArchitecturesInstallIn64BitMode=x64")
+    set( INSTALLER_X64_MODE "" )
 endif()
 
 if( SIGN )