diff --git a/psycopg/python.h b/psycopg/python.h
index 95debf3d..9567c965 100644
--- a/psycopg/python.h
+++ b/psycopg/python.h
@@ -53,6 +53,10 @@
   #define CONV_CODE_PY_SSIZE_T "n"
 #endif
 
+#ifndef Py_TYPE
+  #define Py_TYPE(o) ((o)->ob_type)
+#endif
+
 /* FORMAT_CODE_PY_SSIZE_T is for Py_ssize_t: */
 #define FORMAT_CODE_PY_SSIZE_T "%" PY_FORMAT_SIZE_T "d"