diff --git a/inc/always.php b/inc/always.php
index 4a2b89ae..0c622c8d 100644
--- a/inc/always.php
+++ b/inc/always.php
@@ -15,7 +15,7 @@ $c->admin_email = 'andrew@catalyst.net.nz';
 $c->system_name = "Really Simple CalDAV Store";
 $c->domain_name = $_SERVER['SERVER_NAME'];
 $c->images      = "/images";
-$c->save_time_zone_defs = 1;
+$c->save_time_zone_defs = true;
 $c->stylesheets = array( "/rscds.css" );
 $c->collections_always_exist = true;
 $c->enable_row_linking = true;