diff --git a/web/js/map.js b/web/js/map.js
index 8b203b29..6c408a12 100644
--- a/web/js/map.js
+++ b/web/js/map.js
@@ -131,7 +131,8 @@ DynMap.prototype = {
 			scale: function(zoom) {
 				return (1 << zoom);
 			},
-			continuousWorld: true
+			continuousWorld: true,
+			worldCopyJump: false
 		});
 		window.map = map; // Placate Leaflet need for top-level 'map'....