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 6984fc44f884309a2263198e1c5a1d6063a428fb..388ddb681c48195242783e586cba8c267c0b7115 100644
--- a/modules/cellframe-sdk/chain/src/wrapping_dap_chain_ledger.c
+++ b/modules/cellframe-sdk/chain/src/wrapping_dap_chain_ledger.c
@@ -54,7 +54,7 @@ PyObject *dap_chain_ledger_token_emission_add_py(PyObject *self, PyObject *args)
     size_t token_emissiom_size;
     if (!PyArg_ParseTuple(args, "O|n", &token_emission, &token_emissiom_size))
         return NULL;
-    int res = dap_chain_ledger_token_emission_add(((PyDapChainLedgerObject*)self)->ledger, ((PyDapChainDatumTokenEmissionObject*)token_emission)->token_emission, token_emissiom_size);
+    int res = dap_chain_ledger_token_emission_add(((PyDapChainLedgerObject*)self)->ledger, (byte_t *)((PyDapChainDatumTokenEmissionObject*)token_emission)->token_emission, token_emissiom_size);
     return PyLong_FromLong(res);
 }
 PyObject *dap_chain_ledger_token_emission_find_py(PyObject *self, PyObject *args){