diff --git a/src/mapnode.cpp b/src/mapnode.cpp
index c616e011755a..5dab93754a1e 100644
--- a/src/mapnode.cpp
+++ b/src/mapnode.cpp
@@ -234,8 +234,10 @@ u32 MapNode::serializedLength(u8 version)
 		return 1;
 	else if(version <= 9)
 		return 2;
-	else
+	else if(version <= 23)
 		return 3;
+	else
+		return 4;
 }
 void MapNode::serialize(u8 *dest, u8 version)
 {
diff --git a/src/server.cpp b/src/server.cpp
index 0e4986411359..b3cbea6a447e 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -4016,7 +4016,7 @@ void Server::SendBlocks(float dtime)
 
 		RemoteClient *client = getClient(q.peer_id);
 
-		SendBlockNoLock(q.peer_id, block, 24);//client->serialization_version);
+		SendBlockNoLock(q.peer_id, block, client->serialization_version);
 
 		client->SentBlock(q.pos);