diff --git a/dbus/gattlib.c b/dbus/gattlib.c
index 7740920..c6ecefe 100644
--- a/dbus/gattlib.c
+++ b/dbus/gattlib.c
@@ -928,7 +928,7 @@ gboolean on_handle_characteristic_property_change(
 							MAX_LEN_UUID_STR + 1,
 							&uuid);
 
-					connection->notification_handler(&uuid, data, data_length, user_data);
+					connection->notification_handler(&uuid, data, data_length, connection->notification_user_data);
 					break;
 				}
 			}