diff --git a/utils/utilities.py b/utils/utilities.py
index 9c788be..83458c5 100644
--- a/utils/utilities.py
+++ b/utils/utilities.py
@@ -167,7 +167,7 @@
 
 def make_boolean(value):
     value_capitalized = str(value).lower().title()
-    if literal_eval(value_capitalized) in [True, False]:
+    if literal_eval(value_capitalized) in [True, False, None]:
         return literal_eval(str(value).title())
     else:
         return value