diff --git a/modules/cellframe-sdk/chain/src/wrapping_dap_chain_ledger.c b/modules/cellframe-sdk/chain/src/wrapping_dap_chain_ledger.c
index 47420d77e03222eb17f7f9f55e2706cc11f49a14..585e2e6a836c9c91f1d8f52a03cc06aa37321b45 100644
--- a/modules/cellframe-sdk/chain/src/wrapping_dap_chain_ledger.c
+++ b/modules/cellframe-sdk/chain/src/wrapping_dap_chain_ledger.c
@@ -86,7 +86,7 @@ PyObject *dap_chain_ledger_tx_add_py(PyObject *self, PyObject *args){
         return NULL;
     dap_hash_fast_t l_tx_hash;
     dap_hash_fast(obj_datum_tx->datum_tx, dap_chain_datum_tx_get_size(obj_datum_tx->datum_tx), &l_tx_hash);
-    int res = dap_ledger_tx_add(((PyDapChainLedgerObject*)self)->ledger, obj_datum_tx->datum_tx, &l_tx_hash, false);
+    int res = dap_ledger_tx_add(((PyDapChainLedgerObject*)self)->ledger, obj_datum_tx->datum_tx, &l_tx_hash, false, NULL);
     return PyLong_FromLong(res);
 }
 PyObject *dap_chain_ledger_token_add_py(PyObject *self, PyObject *args)