diff --git a/web/skins/classic/views/js/monitor.js.php b/web/skins/classic/views/js/monitor.js.php
index cc61270d0..bdcc17554 100644
--- a/web/skins/classic/views/js/monitor.js.php
+++ b/web/skins/classic/views/js/monitor.js.php
@@ -1,4 +1,4 @@
-var ZM_OPT_USE_GEOLOCATION = '<?php echo ZM_OPT_USE_GEOLOCATION ?>';
+var ZM_OPT_USE_GEOLOCATION = '<?php echo ZM_OPT_USE_GEOLOCATION ?>' == '1' ? true : false;
 <?php
 if ( ZM_OPT_USE_GEOLOCATION ) { 
   echo 'var ZM_OPT_GEOLOCATION_TILE_PROVIDER=\''.ZM_OPT_GEOLOCATION_TILE_PROVIDER.'\''.PHP_EOL;