diff --git a/NewareNDA/dicts.py b/NewareNDA/dicts.py
index acbe90e..d6ce4b2 100644
--- a/NewareNDA/dicts.py
+++ b/NewareNDA/dicts.py
@@ -81,6 +81,7 @@
     50: 1e-3,
     100: 1e-2,
     200: 1e-2,
+    250: 1e-2,
     500: 1e-2,
     1000: 1e-1,
     6000: 1e-1,