diff --git a/TShockAPI/Handlers/SendTileRectHandler.cs b/TShockAPI/Handlers/SendTileRectHandler.cs
index 883eff51..607cba03 100644
--- a/TShockAPI/Handlers/SendTileRectHandler.cs
+++ b/TShockAPI/Handlers/SendTileRectHandler.cs
@@ -157,8 +157,9 @@ namespace TShockAPI.Handlers
 					int realY = tileY + y;
 
 					// Do not process tiles outside of the world boundaries
-					if ((realX < 0 || realX >= Main.maxTilesX)
-						|| (realY < 0 || realY > Main.maxTilesY))
+					// The hidden world strip is 40 tiles wide/tall, use 10 instead just to be safe to avoid off-by-one errors
+					if ((realX < 10 || realX >= Main.maxTilesX - 10)
+						|| (realY < 10 || realY > Main.maxTilesY - 10))
 					{
 						processed[x, y] = true;
 						continue;