diff --git a/src/main/java/com/volmit/iris/gen/post/PostMasterPatcher.java b/src/main/java/com/volmit/iris/gen/post/PostMasterPatcher.java
index 7a56579cf..8f542fb3e 100644
--- a/src/main/java/com/volmit/iris/gen/post/PostMasterPatcher.java
+++ b/src/main/java/com/volmit/iris/gen/post/PostMasterPatcher.java
@@ -253,7 +253,7 @@ public class PostMasterPatcher extends IrisPostBlockFilter
 		{
 			IrisBiome cave = gen.sampleTrueBiome(x, 1, z);
 
-			if(cave.getInferredType().equals(InferredType.CAVE))
+			if(cave != null && cave.getInferredType().equals(InferredType.CAVE))
 			{
 				for(CaveResult i : gen.getCaves(x, z))
 				{