diff --git a/Tools/QtBiomeVisualiser/Region.h b/Tools/QtBiomeVisualiser/Region.h
index f1bef0c2d..863c0ac02 100644
--- a/Tools/QtBiomeVisualiser/Region.h
+++ b/Tools/QtBiomeVisualiser/Region.h
@@ -30,6 +30,8 @@ public:
 	static void chunkToRegion(int a_ChunkX, int a_ChunkZ, int & a_RegionX, int & a_RegionZ);
 
 protected:
+	friend class RegionLoader;
+
 
 	Chunk m_Chunks[32 * 32];
 
diff --git a/Tools/QtBiomeVisualiser/RegionLoader.cpp b/Tools/QtBiomeVisualiser/RegionLoader.cpp
index 8c298da1e..771c1bbac 100644
--- a/Tools/QtBiomeVisualiser/RegionLoader.cpp
+++ b/Tools/QtBiomeVisualiser/RegionLoader.cpp
@@ -29,6 +29,8 @@ void RegionLoader::run()
 			m_ChunkSource->getChunkBiomes(m_RegionX * 32 + x, m_RegionZ * 32 + z, m_Region->getRelChunk(x, z));
 		}
 	}
+	m_Region->m_IsValid = true;
+
 	emit loaded(m_RegionX, m_RegionZ);
 }