diff --git a/src/main/java/ru/betterend/blocks/EndPortalBlock.java b/src/main/java/ru/betterend/blocks/EndPortalBlock.java
index 3435860c..965f2916 100644
--- a/src/main/java/ru/betterend/blocks/EndPortalBlock.java
+++ b/src/main/java/ru/betterend/blocks/EndPortalBlock.java
@@ -10,7 +10,6 @@ import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
 import net.minecraft.block.NetherPortalBlock;
 import net.minecraft.entity.Entity;
-import net.minecraft.entity.LivingEntity;
 import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.sound.SoundCategory;
diff --git a/src/main/java/ru/betterend/util/EternalRitual.java b/src/main/java/ru/betterend/util/EternalRitual.java
index 74837e33..2edf33cd 100644
--- a/src/main/java/ru/betterend/util/EternalRitual.java
+++ b/src/main/java/ru/betterend/util/EternalRitual.java
@@ -79,7 +79,8 @@ 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() {