diff --git a/artiq/language/db.py b/artiq/language/db.py
index cb7e23908..21be55a2a 100644
--- a/artiq/language/db.py
+++ b/artiq/language/db.py
@@ -68,6 +68,10 @@ class AutoDB:
     class DBKeys:
         pass
 
+    @staticmethod
+    def realtime_results():
+        return dict()
+
     def __init__(self, dbh=None, **kwargs):
         self.dbh = dbh