diff --git a/dtile/dtile.lua b/dtile/dtile.lua
index 1effd5b..de6f6a2 100644
--- a/dtile/dtile.lua
+++ b/dtile/dtile.lua
@@ -101,6 +101,7 @@ local function configure_animation_groups_instances()
 	for i = 1, #dtile.tilemap_layers do
 		dtile.tilemap_grid[dtile.tilemap_layers[i]] = {}
 		for j = dtile.tilemap_start_y, dtile.tilemap_end_y do
+			dtile.tilemap_grid[dtile.tilemap_layers[i]][j] = {}
 			table.insert(dtile.tilemap_grid[dtile.tilemap_layers[i]], {})
 			for k = dtile.tilemap_start_x, dtile.tilemap_end_x do
 				local tile_id = tilemap.get_tile(dtile.tilemap_url, dtile.tilemap_layers[i], k, j)
@@ -299,4 +300,4 @@ function dtile.toggle_message_passing(flag, url)
 	dtile.msg_passing_url = url
 end
 
-return dtile
\ No newline at end of file
+return dtile