diff --git a/sharedPlugins/remoteMap/control.lua b/sharedPlugins/remoteMap/control.lua
index d5fa7b2f..8e7b8e42 100644
--- a/sharedPlugins/remoteMap/control.lua
+++ b/sharedPlugins/remoteMap/control.lua
@@ -91,7 +91,7 @@ function on_some_entity_deleted(event)
 	--local area = {left_top={x=math.floor(ent.position.x), y=math.floor(ent.position.y)}, right_bottom={x=math.floor(ent.position.x)+1, y=math.floor(ent.position.y)+1}}
 
 	--table.insert(todo_next_tick, function () writeout_objects(surface, area ) end)
-	write_file("deleted "..ent.position.x.." "..ent.position.y)
+	write_file("deleted,"..ent.position.x..","..ent.position.y)
 	--complain("on_some_entity_deleted: "..ent.name.." at "..ent.position.x..","..ent.position.y)
 end
 
diff --git a/static/remoteMap.js b/static/remoteMap.js
index fe4cfbd8..b0a488fa 100644
--- a/static/remoteMap.js
+++ b/static/remoteMap.js
@@ -167,7 +167,12 @@ function drawEntity(entity, dontCache){
 		if(!dontCache){
 			// cache entity for later draws (like panning)
 			if(entity.x - playerPosition.x/16 >= 0 && entity.x - playerPosition.x/16 < 64 && entity.y - playerPosition.y/16 >= 0 && entity.y - playerPosition.y/16 < 64){
-				entityCache[entity.x - playerPosition.x/16][entity.y - playerPosition.y/16] = entity;
+				if(entity.entity){
+					entityCache[entity.x - playerPosition.x/16][entity.y - playerPosition.y/16] = entity;
+				} else {
+					// delete this entity because we just heard the tile is empty and stuff
+					entityCache[entity.x - playerPosition.x/16][entity.y - playerPosition.y/16] = " ";
+				}
 			}
 		}
 		if(entity.entity && entity.entity.name && typeof entity.entity.name == "string"){