diff --git a/src/mapblock.cpp b/src/mapblock.cpp
index 34d039994..c18231a6e 100644
--- a/src/mapblock.cpp
+++ b/src/mapblock.cpp
@@ -117,7 +117,8 @@ MapBlock::~MapBlock()
 #endif
 
 	delete[] data;
-	porting::TrackFreedMemory(sizeof(MapNode) * nodecount);
+	if (!m_is_mono_block)
+		porting::TrackFreedMemory(sizeof(MapNode) * nodecount);
 }
 
 static inline size_t get_max_objects_per_block()
diff --git a/src/mapblock.h b/src/mapblock.h
index 7315317ff..ac4710b62 100644
--- a/src/mapblock.h
+++ b/src/mapblock.h
@@ -440,6 +440,9 @@ private:
 	void reallocate(u32 c, MapNode n)
 	{
 		delete[] data;
+		if (c == 1)
+			porting::TrackFreedMemory(sizeof(MapNode) * nodecount);
+
 		data = new MapNode[c];
 		for (u32 i = 0; i < c; i++)
 			data[i] = n;