diff --git a/mozilla/calendar/installer/windows/packages-static b/mozilla/calendar/installer/windows/packages-static
index 0e27f8dc1c0..5c321bfbd67 100644
--- a/mozilla/calendar/installer/windows/packages-static
+++ b/mozilla/calendar/installer/windows/packages-static
@@ -32,7 +32,7 @@ bin\defaults\profile\mimeTypes.rdf
 bin\defaults\profile\extensions\Extensions.rdf
 bin\defaults\profile\extensions\installed-extensions.txt
 ;!4sunbird bin\defaults\profile\extensions\{641d8d09-7dda-4850-8228-ac0ab65e2ac9}\install.rdf
-;!4sunbird bin\defaults\profile\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}\install.rdf
+bin\defaults\profile\extensions\{8af2d0a7-e394-4de2-ae55-2dae532a7a9b}\install.rdf
 
 [xpcom]
 bin\js3250.dll