diff --git a/wrapper/opensync.i b/wrapper/opensync.i
index 623c0f4..8131158 100644
--- a/wrapper/opensync.i
+++ b/wrapper/opensync.i
@@ -82,7 +82,7 @@ typedef struct {} OSyncHashTable;
 %extend OSyncChange {
 	OSyncChange(PyObject *obj=NULL) {
 		OSyncChange *change = NULL;
-		if (obj)
+		if ((obj) && (obj != Py_None))
 			change = (OSyncChange *)PyCObject_AsVoidPtr(obj);
 		else
 			change = osync_change_new();