diff --git a/src/main/java/ru/betterend/util/EternalRitual.java b/src/main/java/ru/betterend/util/EternalRitual.java
index 9e7e7c35..b6a0ba11 100644
--- a/src/main/java/ru/betterend/util/EternalRitual.java
+++ b/src/main/java/ru/betterend/util/EternalRitual.java
@@ -83,7 +83,8 @@ public class EternalRitual {
 	
 	private boolean isValid() {
 		return world != null && !world.isClient() &&
-			   center != null && axis != null;
+			   center != null && axis != null &&
+			   world.getRegistryKey() != World.NETHER;
 	}
 	
 	public void checkStructure() {