diff --git a/code/MSSQLSchemaManager.php b/code/MSSQLSchemaManager.php
index 9833fcc..6d066a1 100644
--- a/code/MSSQLSchemaManager.php
+++ b/code/MSSQLSchemaManager.php
@@ -733,6 +733,16 @@ class MSSQLSchemaManager extends DBSchemaManager {
 		return 'int not null default ' . (int) $values['default'];
 	}
 
+	/**
+	 * Return a bigint type-formatted string
+	 *
+	 * @params array $values Contains a tokenised list of info about this data type
+	 * @return string
+	 */
+	public function bigint($values) {
+		return 'bigint not null default ' . (int) $values['default'];
+	}
+
 	/**
 	 * Return a datetime type-formatted string
 	 * For MS SQL, we simply return the word 'timestamp', no other parameters are necessary