diff --git a/cli/util.py b/cli/util.py
index 81cd483..8705d36 100644
--- a/cli/util.py
+++ b/cli/util.py
@@ -1,6 +1,12 @@
 import os
 import tempfile
 
+def execute_query(cursor, query, bindings):
+    for (key, val) in bindings.items():
+        if val == None:
+            query = query.replace('%(' + key + ')d', 'NULL')
+    cursor.execute(query, bindings)
+
 def make_result_dict(cursor, row):
     d = {}
     for i in xrange(len(row)):