diff --git a/src/ChunkDef.h b/src/ChunkDef.h
index 442c9633d..edeb7c0a0 100644
--- a/src/ChunkDef.h
+++ b/src/ChunkDef.h
@@ -10,6 +10,7 @@
 #pragma once
 
 #include "Vector3i.h"
+#include "BiomeDef.h"
 
 
 
@@ -38,8 +39,6 @@ class cBlockEntity;
 typedef std::list<cEntity *>        cEntityList;
 typedef std::list<cBlockEntity *>   cBlockEntityList;
 
-enum EMCSBiome;
-