diff --git a/db.sql b/db.sql
index 29473e06..d41a67c0 100644
--- a/db.sql
+++ b/db.sql
@@ -291,7 +291,7 @@ CREATE TABLE `contacts` (
   `contact_email` varchar(200) DEFAULT NULL,
   `contact_phone` varchar(200) DEFAULT NULL,
   `contact_extension` varchar(200) DEFAULT NULL,
-  `contact_mobile` varchar(200) DEFAULT '''NULL''',
+  `contact_mobile` varchar(200) DEFAULT NULL,
   `contact_photo` varchar(200) DEFAULT NULL,
   `contact_notes` text DEFAULT NULL,
   `contact_created_at` datetime NOT NULL,