diff --git a/source/cChunk.cpp b/source/cChunk.cpp
index 1383a49d9..5ebf8b656 100644
--- a/source/cChunk.cpp
+++ b/source/cChunk.cpp
@@ -240,6 +240,8 @@ void cChunk::SetAllData(const char * a_BlockData, cEntityList & a_Entities, cBlo
 	CreateBlockEntities();
 
 	CalculateHeightmap();
+	
+	MarkDirty();
 }