diff --git a/src/main/java/org/bukkit/block/Biome.java b/src/main/java/org/bukkit/block/Biome.java
index 7abacb15..7af9fd77 100644
--- a/src/main/java/org/bukkit/block/Biome.java
+++ b/src/main/java/org/bukkit/block/Biome.java
@@ -16,5 +16,8 @@ public enum Biome {
     ICE_DESERT,
     TUNDRA,
     HELL,
-    SKY
+    SKY,
+    OCEAN,
+    RIVER,
+    EXTREME_HILLS,
 }