diff --git a/src/cryptonote_core/cryptonote_basic.h b/src/cryptonote_core/cryptonote_basic.h
index 287d127..b7d3cf0 100644
--- a/src/cryptonote_core/cryptonote_basic.h
+++ b/src/cryptonote_core/cryptonote_basic.h
@@ -507,7 +507,7 @@ namespace cryptonote
 
     BEGIN_SERIALIZE_OBJECT()
       FIELDS(*static_cast<block_header *>(this))
-      if (BLOCK_MAJOR_VERSION_2 <= major_version)
+      if (BLOCK_MAJOR_VERSION_2 == major_version || BLOCK_MAJOR_VERSION_3 == major_version)
       {
     puts("[7");
         auto sbb = make_serializable_bytecoin_block(*this, false, false);