diff --git a/src/ChunkMap.cpp b/src/ChunkMap.cpp
index d2ccca94e..f0222c0f5 100644
--- a/src/ChunkMap.cpp
+++ b/src/ChunkMap.cpp
@@ -1530,7 +1530,7 @@ void cChunkMap::SendBlockTo(int a_X, int a_Y, int a_Z, cPlayer * a_Player)
 	
 	cCSLock Lock(m_CSLayers);
 	cChunkPtr Chunk = GetChunk(ChunkX, ZERO_CHUNK_Y, ChunkZ);
-	if (Chunk->IsValid())
+	if (Chunk != NULL && Chunk->IsValid())
 	{
 		Chunk->SendBlockTo(a_X, a_Y, a_Z, a_Player->GetClientHandle());
 	}