diff --git a/src/main/java/com/raoulvdberge/refinedpipes/block/ItemPipeBlock.java b/src/main/java/com/raoulvdberge/refinedpipes/block/ItemPipeBlock.java
index 33d45e2..fc4c8d6 100644
--- a/src/main/java/com/raoulvdberge/refinedpipes/block/ItemPipeBlock.java
+++ b/src/main/java/com/raoulvdberge/refinedpipes/block/ItemPipeBlock.java
@@ -32,6 +32,7 @@
 import javax.annotation.Nullable;
 
 public class ItemPipeBlock extends Block {
+    // TODO: different connection for chests
     public static final BooleanProperty NORTH = BooleanProperty.create("north");
     public static final BooleanProperty EAST = BooleanProperty.create("east");
     public static final BooleanProperty SOUTH = BooleanProperty.create("south");