diff --git a/src/if_python.c b/src/if_python.c
index d72dbfc..5245485 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -329,7 +329,7 @@
 static PyTypeObject* dll_PyLong_Type;
 static PyObject*(*dll_PyList_GetItem)(PyObject *, PyInt);
 static int(*dll_PyList_Append)(PyObject *, PyObject *);
-static int(*dll_PyList_Insert)(PyObject *, int, PyObject *);
+static int(*dll_PyList_Insert)(PyObject *, PyInt, PyObject *);
 static PyObject*(*dll_PyList_New)(PyInt size);
 static int(*dll_PyList_SetItem)(PyObject *, PyInt, PyObject *);
 static PyInt(*dll_PyList_Size)(PyObject *);
@@ -365,7 +365,7 @@
 static PyObject* (*dll_PyObject_Call)(PyObject *, PyObject *, PyObject *);
 static PyObject* (*dll_PyObject_Repr)(PyObject *);
 static char*(*dll_PyString_AsString)(PyObject *);
-static int(*dll_PyString_AsStringAndSize)(PyObject *, char **, int *);
+static int(*dll_PyString_AsStringAndSize)(PyObject *, char **, PyInt *);
 static PyObject*(*dll_PyString_FromString)(const char *);
 static PyObject*(*dll_PyString_FromFormat)(const char *, ...);
 static PyObject*(*dll_PyString_FromStringAndSize)(const char *, PyInt);