diff --git a/glom-1.2.2-py25.patch b/glom-1.2.2-py25.patch
index 39c3764..0ed3c4d 100644
--- a/glom-1.2.2-py25.patch
+++ b/glom-1.2.2-py25.patch
@@ -38,3 +38,23 @@
      (binaryfunc)Related_tp_as_mapping_getitem,
      (objobjargproc)0 /* Related_tp_as_mapping_setitem */
  };
+--- glom-1.2.2/glom/libglom/python_embed/py_glom_relatedrecord.cc.orig	2006-12-28 12:46:59.000000000 +0100
++++ glom-1.2.2/glom/libglom/python_embed/py_glom_relatedrecord.cc	2006-12-28 13:26:01.000000000 +0100
+@@ -140,7 +140,7 @@
+ */
+ 
+ 
+-static int
++static Py_ssize_t
+ RelatedRecord_tp_as_mapping_length(PyGlomRelatedRecord *self)
+ {
+   return self->m_pMap_field_values->size();
+@@ -237,7 +237,7 @@
+ */
+ 
+ static PyMappingMethods RelatedRecord_tp_as_mapping = {
+-    (inquiry)RelatedRecord_tp_as_mapping_length,
++    (lenfunc)RelatedRecord_tp_as_mapping_length,
+     (binaryfunc)RelatedRecord_tp_as_mapping_getitem,
+     (objobjargproc)0 /* RelatedRecord_tp_as_mapping_setitem */
+ };