diff --git a/src/if_python.c b/src/if_python.c
index 6e43b5d..e34bd28 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -359,7 +359,7 @@
 static PyObject *(*dll_PyRun_String)(char *, int, PyObject *, PyObject *);
 static PyObject* (*dll_PyObject_GetAttrString)(PyObject *, const char *);
 static int (*dll_PyObject_HasAttrString)(PyObject *, const char *);
-static PyObject* (*dll_PyObject_SetAttrString)(PyObject *, const char *, PyObject *);
+static int (*dll_PyObject_SetAttrString)(PyObject *, const char *, PyObject *);
 static PyObject* (*dll_PyObject_CallFunctionObjArgs)(PyObject *, ...);
 static PyObject* (*dll_PyObject_CallFunction)(PyObject *, char *, ...);
 static PyObject* (*dll_PyObject_Call)(PyObject *, PyObject *, PyObject *);