diff --git a/src/main/java/com/falsepattern/endlessids/managers/BiomeManager.java b/src/main/java/com/falsepattern/endlessids/managers/BiomeManager.java
index 4030500..7077c73 100644
--- a/src/main/java/com/falsepattern/endlessids/managers/BiomeManager.java
+++ b/src/main/java/com/falsepattern/endlessids/managers/BiomeManager.java
@@ -15,6 +15,7 @@ import net.minecraft.world.chunk.Chunk;
 
 import java.nio.ByteBuffer;
 
+//NOTE: Also change the save logic in MapWriter mod if changing this
 public class BiomeManager implements DataManager.PacketDataManager, DataManager.ChunkDataManager {
 
     @Override
diff --git a/src/main/java/com/falsepattern/endlessids/managers/BlockIDManager.java b/src/main/java/com/falsepattern/endlessids/managers/BlockIDManager.java
index 999326a..3734677 100644
--- a/src/main/java/com/falsepattern/endlessids/managers/BlockIDManager.java
+++ b/src/main/java/com/falsepattern/endlessids/managers/BlockIDManager.java
@@ -20,6 +20,7 @@ import java.nio.ByteBuffer;
 import static com.falsepattern.endlessids.constants.ExtendedConstants.blocksPerSubChunk;
 import static com.falsepattern.endlessids.util.DataUtil.*;
 
+//NOTE: Also change the save logic in MapWriter mod if changing this
 public class BlockIDManager implements DataManager.PacketDataManager, DataManager.SubChunkDataManager {
 
     @Override
diff --git a/src/main/java/com/falsepattern/endlessids/managers/BlockMetaManager.java b/src/main/java/com/falsepattern/endlessids/managers/BlockMetaManager.java
index 2c0e61a..cf7805a 100644
--- a/src/main/java/com/falsepattern/endlessids/managers/BlockMetaManager.java
+++ b/src/main/java/com/falsepattern/endlessids/managers/BlockMetaManager.java
@@ -19,6 +19,7 @@ import java.nio.ByteBuffer;
 
 import static com.falsepattern.endlessids.constants.ExtendedConstants.blocksPerSubChunk;
 
+//NOTE: Also change the save logic in MapWriter mod if changing this
 public class BlockMetaManager implements DataManager.PacketDataManager, DataManager.SubChunkDataManager {
 
     @Override