diff --git a/code/map_data_calc_tools.js b/code/map_data_calc_tools.js
index 40cf7162..560a9fb9 100755
--- a/code/map_data_calc_tools.js
+++ b/code/map_data_calc_tools.js
@@ -12,7 +12,7 @@
 
 window.setupDataTileParams = function() {
   // default values - used to fall back to if we can't detect those used in stock intel
-  var DEFAULT_ZOOM_TO_TILES_PER_EDGE = [1,1,1,40,40,80,80,320,1000,2000,2000,4000,8000,16000,16000,32000];
+  var DEFAULT_ZOOM_TO_TILES_PER_EDGE = [256,256,256,256,512,512,512,2048,2048,4096,4096,6500,6500,6500,18000,18000,36000];
   var DEFAULT_ZOOM_TO_LEVEL = [8,8,8,8,7,7,7,6,6,5,4,4,3,2,2,1,1];
 
   // stock intel doesn't have this array (they use a switch statement instead), but this is far neater