diff --git a/pybtc/_secp256k1/module_secp256k1.c b/pybtc/_secp256k1/module_secp256k1.c
index b1249ad..253f8a6 100644
--- a/pybtc/_secp256k1/module_secp256k1.c
+++ b/pybtc/_secp256k1/module_secp256k1.c
@@ -225,7 +225,7 @@ static PyObject *secp256k1_secp256k1_ec_pubkey_create(PyObject *self, PyObject *
     int flag;
     Py_buffer buffer;
     if (!PyArg_ParseTuple(args,"y*i", &buffer, &flag)) { return NULL; }
-    PyBuffer_Release(buffer);
+    PyBuffer_Release(&buffer);
     return Py_BuildValue("b", 0);