diff --git a/src/if_python.c b/src/if_python.c
index 889ff05..16874e8 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -212,6 +212,7 @@
 # define PyString_AsString dll_PyString_AsString
 # define PyString_AsStringAndSize dll_PyString_AsStringAndSize
 # define PyString_FromString dll_PyString_FromString
+# define PyString_FromFormat dll_PyString_FromFormat
 # define PyString_FromStringAndSize dll_PyString_FromStringAndSize
 # define PyString_Size dll_PyString_Size
 # define PyString_Type (*dll_PyString_Type)
@@ -340,6 +341,7 @@
 static char*(*dll_PyString_AsString)(PyObject *);
 static int(*dll_PyString_AsStringAndSize)(PyObject *, char **, int *);
 static PyObject*(*dll_PyString_FromString)(const char *);
+static PyObject*(*dll_PyString_FromFormat)(const char *, ...);
 static PyObject*(*dll_PyString_FromStringAndSize)(const char *, PyInt);
 static PyInt(*dll_PyString_Size)(PyObject *);
 static PyTypeObject* dll_PyString_Type;
@@ -499,6 +501,7 @@
     {"PyString_AsString", (PYTHON_PROC*)&dll_PyString_AsString},
     {"PyString_AsStringAndSize", (PYTHON_PROC*)&dll_PyString_AsStringAndSize},
     {"PyString_FromString", (PYTHON_PROC*)&dll_PyString_FromString},
+    {"PyString_FromFormat", (PYTHON_PROC*)&dll_PyString_FromFormat},
     {"PyString_FromStringAndSize", (PYTHON_PROC*)&dll_PyString_FromStringAndSize},
     {"PyString_Size", (PYTHON_PROC*)&dll_PyString_Size},
     {"PyString_Type", (PYTHON_PROC*)&dll_PyString_Type},