diff --git a/py/Boinc/boinc_db.py b/py/Boinc/boinc_db.py
index 0d201f4932..0ffc82efaa 100644
--- a/py/Boinc/boinc_db.py
+++ b/py/Boinc/boinc_db.py
@@ -67,8 +67,12 @@ HTTP_STATUS_CLIENT_ERROR = 400
 HTTP_STATUS_NOT_FOUND = 404
 HTTP_STATUS_PROXY_AUTH_REQ = 407
 HTTP_STATUS_RANGE_REQUEST_ERROR = 416
+HTTP_STATUS_EXPECTATION_FAILED = 417
 HTTP_STATUS_INTERNAL_SERVER_ERROR = 500
+HTTP_STATUS_NOT_IMPLEMENTED = 501
+HTTP_STATUS_BAD_GATEWAY = 502
 HTTP_STATUS_SERVICE_UNAVAILABLE = 503
+HTTP_STATUS_GATEWAY_TIMEOUT = 504
 MODE_UNSUPPORTED = 0
 MODE_HIDE_GRAPHICS = 1
 MODE_WINDOW = 2