diff --git a/xpinstall/packager/windows/config.it b/xpinstall/packager/windows/config.it
index 04c70a95ba5a..af7fb56a0e26 100644
--- a/xpinstall/packager/windows/config.it
+++ b/xpinstall/packager/windows/config.it
@@ -317,6 +317,7 @@ Description Short=$CompanyName$ Uninstaller
 Description Long=Uninstaller for $ProductName$
 Archive=$UninstallFile$
 $InstallSize$:$UninstallFile$
+$InstallSizeSystem$
 $InstallSizeArchive$:$UninstallFile$
 ;Dependency0=
 ; Attributes can be the following values:
diff --git a/xpinstall/packager/windows/makecfgini.pl b/xpinstall/packager/windows/makecfgini.pl
index 1e782fa5c23f..9ef575a683ad 100644
--- a/xpinstall/packager/windows/makecfgini.pl
+++ b/xpinstall/packager/windows/makecfgini.pl
@@ -167,7 +167,7 @@ while($line = <fpInIt>)
     {
       $componentName = $colonSplit[1];
       chop($componentName);
-
+      $componentName      =~ s/\$UninstallFile\$/$fileUninstall/gi;
       $installSizeArchive = OutputInstallSizeArchive("$inXpiPath\\$componentName");
     }