diff --git a/src/Generating/ComposableGenerator.cpp b/src/Generating/ComposableGenerator.cpp
index 2c74340be..4eee8b707 100644
--- a/src/Generating/ComposableGenerator.cpp
+++ b/src/Generating/ComposableGenerator.cpp
@@ -274,7 +274,7 @@ void cComposableGenerator::InitCompositionGen(cIniFile & a_IniFile)
 	}
 
 	// Create a cache of the composited heightmaps, so that finishers may use it:
-	m_CompositedHeightCache = std::make_shared<cHeiGenMultiCache>(std::make_shared<cCompositedHeiGen>(m_ShapeGen, m_CompositionGen), 16, 24);
+	m_CompositedHeightCache = std::make_shared<cHeiGenMultiCache>(std::make_shared<cCompositedHeiGen>(m_BiomeGen, m_ShapeGen, m_CompositionGen), 16, 24);
 	// 24 subcaches of depth 16 each = 96 KiB of RAM. Acceptable, for the amount of work this saves.
 }
 
diff --git a/src/Generating/CompositedHeiGen.h b/src/Generating/CompositedHeiGen.h
index fa33a7861..c4e6ce77d 100644
--- a/src/Generating/CompositedHeiGen.h
+++ b/src/Generating/CompositedHeiGen.h
@@ -20,7 +20,8 @@ class cCompositedHeiGen:
 	public cTerrainHeightGen
 {
 public:
-	cCompositedHeiGen(cTerrainShapeGenPtr a_ShapeGen, cTerrainCompositionGenPtr a_CompositionGen):
+	cCompositedHeiGen(cBiomeGenPtr a_BiomeGen, cTerrainShapeGenPtr a_ShapeGen, cTerrainCompositionGenPtr a_CompositionGen):
+		m_BiomeGen(a_BiomeGen),
 		m_ShapeGen(a_ShapeGen),
 		m_CompositionGen(a_CompositionGen)
 	{
@@ -28,18 +29,20 @@ public:
 
 
 
-	// cTerrainheightGen overrides:
+	// cTerrainHeightGen overrides:
 	virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override
 	{
 		cChunkDesc::Shape shape;
 		m_ShapeGen->GenShape(a_ChunkX, a_ChunkZ, shape);
 		cChunkDesc desc(a_ChunkX, a_ChunkZ);
+		m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, desc.GetBiomeMap());	  // Need to initialize biomes for the composition gen
 		desc.SetHeightFromShape(shape);
 		m_CompositionGen->ComposeTerrain(desc, shape);
 		memcpy(a_HeightMap, desc.GetHeightMap(), sizeof(a_HeightMap));
 	}
 
 protected:
+	cBiomeGenPtr m_BiomeGen;
 	cTerrainShapeGenPtr m_ShapeGen;
 	cTerrainCompositionGenPtr m_CompositionGen;
 };