diff --git a/psycopg/adapter_asis.c b/psycopg/adapter_asis.c
index e11caa04..8a5cd068 100644
--- a/psycopg/adapter_asis.c
+++ b/psycopg/adapter_asis.c
@@ -34,6 +34,9 @@
 
 /** the AsIs object **/
 
+#if PY_MAJOR_VERSION > 2
+IGNORE_REFCOUNT     /* bug davidmalcolm/gcc-python-plugin#171 */
+#endif
 static PyObject *
 asis_getquoted(asisObject *self, PyObject *args)
 {