diff --git a/src/cryptonote_core/cryptonote_basic.h b/src/cryptonote_core/cryptonote_basic.h
index 24cf181..2f7a9b7 100644
--- a/src/cryptonote_core/cryptonote_basic.h
+++ b/src/cryptonote_core/cryptonote_basic.h
@@ -235,7 +235,7 @@ namespace cryptonote
   };
 
   inline
-  transaction::transaction()
+  transaction::transaction() : blob_type(BLOB_TYPE_CRYPTONOTE)
   {
     set_null();
   }
diff --git a/src/cryptonote_core/cryptonote_format_utils.cpp b/src/cryptonote_core/cryptonote_format_utils.cpp
index dc496de..0ceba8f 100644
--- a/src/cryptonote_core/cryptonote_format_utils.cpp
+++ b/src/cryptonote_core/cryptonote_format_utils.cpp
@@ -369,7 +369,7 @@ namespace cryptonote
   bool get_transaction_hash(const transaction& t, crypto::hash& res, size_t* blob_size)
   {
     // v1 transactions hash the entire blob
-    if (t.version == 1)
+    if (t.version == 1 && t.blob_type != BLOB_TYPE_CRYPTONOTE2)
     {
       size_t ignored_blob_size, &blob_size_ref = blob_size ? *blob_size : ignored_blob_size;
       return get_object_hash(t, res, blob_size_ref);