diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftComparator.java b/src/main/java/org/bukkit/craftbukkit/block/CraftComparator.java
index c3c3bd08e0..d39e2fcc7f 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftComparator.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftComparator.java
@@ -4,9 +4,10 @@ import net.minecraft.server.TileEntity;
 import net.minecraft.server.TileEntityComparator;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
+import org.bukkit.block.Comparator;
 import org.bukkit.craftbukkit.CraftWorld;
 
-public class CraftComparator extends CraftBlockState {
+public class CraftComparator extends CraftBlockState implements Comparator {
 
     private final CraftWorld world;
     private final TileEntityComparator comparator;
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftDaylightDetector.java b/src/main/java/org/bukkit/craftbukkit/block/CraftDaylightDetector.java
index b970727cfb..039df2fd9c 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftDaylightDetector.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftDaylightDetector.java
@@ -4,9 +4,10 @@ import net.minecraft.server.TileEntity;
 import net.minecraft.server.TileEntityLightDetector;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
+import org.bukkit.block.DaylightDetector;
 import org.bukkit.craftbukkit.CraftWorld;
 
-public class CraftDaylightDetector extends CraftBlockState {
+public class CraftDaylightDetector extends CraftBlockState implements DaylightDetector {
 
     private final CraftWorld world;
     private final TileEntityLightDetector detector;