diff --git a/tailbone/newgrids/filters.py b/tailbone/newgrids/filters.py
index 413f87a3..b952e8a0 100644
--- a/tailbone/newgrids/filters.py
+++ b/tailbone/newgrids/filters.py
@@ -334,7 +334,7 @@ class AlchemyBooleanFilter(AlchemyGridFilter):
     """
     Boolean filter for SQLAlchemy.
     """
-    default_verbs = ['is_true', 'is_false', 'is_any']
+    default_verbs = ['is_true', 'is_false', 'is_null', 'is_not_null', 'is_any']
 
     def filter_is_true(self, query, value):
         """