diff --git a/include/wrapping_dap_chain_datum_tx.h b/include/wrapping_dap_chain_datum_tx.h
index 1b2564ec1d6ccd6eee9a2668edf92e5b421d9eda..62203de76935f602016be83eb17592eea206ce3b 100644
--- a/include/wrapping_dap_chain_datum_tx.h
+++ b/include/wrapping_dap_chain_datum_tx.h
@@ -23,7 +23,7 @@ PyObject *TX_ITEM_TYPE_SIG_PY(void);
 PyObject *TX_ITEM_TYPE_TOKEN_PY(void);
 PyObject *TX_ITEM_TYPE_IN_COND_PY(void);
 PyObject *TX_ITEM_TYPE_OUT_COND_PY(void);
-PyObject *TX_ITEM_TYPE_OUT_SERVICE_RECEIPT_PY(void);
+PyObject *TX_ITEM_TYPE_RECEIPT_PY(void);
 
 static PyMethodDef PyDapChainTxItemTypeObjectMethods[] ={
     {"TX_ITEM_TYPE_IN", (PyCFunction)TX_ITEM_TYPE_IN_PY, METH_NOARGS | METH_STATIC, ""},
@@ -33,7 +33,7 @@ static PyMethodDef PyDapChainTxItemTypeObjectMethods[] ={
     {"TX_ITEM_TYPE_TOKEN", (PyCFunction)TX_ITEM_TYPE_TOKEN_PY, METH_NOARGS | METH_STATIC, ""},
     {"TX_ITEM_TYPE_IN_COND", (PyCFunction)TX_ITEM_TYPE_IN_COND_PY, METH_NOARGS | METH_STATIC, ""},
     {"TX_ITEM_TYPE_OUT_COND", (PyCFunction)TX_ITEM_TYPE_OUT_COND_PY, METH_NOARGS | METH_STATIC, ""},
-    {"TX_ITEM_TYPE_OUT_SERVICE_RECEIPT", (PyCFunction)TX_ITEM_TYPE_OUT_SERVICE_RECEIPT_PY,
+    {"TX_ITEM_TYPE_RECEIPT", (PyCFunction)TX_ITEM_TYPE_RECEIPT_PY,
                                                             METH_NOARGS | METH_STATIC, ""},
     {NULL, NULL, 0, NULL}
 };
diff --git a/src/wrapping_dap_chain_datum_tx.c b/src/wrapping_dap_chain_datum_tx.c
index 49bc2c7df64e9574d4f0770e940797b0bd473501..8a81df217a4ab0721f4e8762cf9e2223071db4ed 100644
--- a/src/wrapping_dap_chain_datum_tx.c
+++ b/src/wrapping_dap_chain_datum_tx.c
@@ -23,8 +23,8 @@ PyObject *TX_ITEM_TYPE_IN_COND_PY(void){
 PyObject *TX_ITEM_TYPE_OUT_COND_PY(void){
         return PyLong_FromLong(TX_ITEM_TYPE_OUT_COND);
 }
-PyObject *TX_ITEM_TYPE_OUT_SERVICE_RECEIPT_PY(void){
-        return PyLong_FromLong(TX_ITEM_TYPE_OUT_SERVICE_RECEIPT);
+PyObject *TX_ITEM_TYPE_RECEIPT_PY(void){
+        return PyLong_FromLong(TX_ITEM_TYPE_RECEIPT);
 }
 
 /* -------------------------------------- */