diff --git a/mozilla/webtools/bugzilla/Bugzilla/DB/Schema.pm b/mozilla/webtools/bugzilla/Bugzilla/DB/Schema.pm
index 2be64cab3a3..3d7f56674a8 100644
--- a/mozilla/webtools/bugzilla/Bugzilla/DB/Schema.pm
+++ b/mozilla/webtools/bugzilla/Bugzilla/DB/Schema.pm
@@ -470,7 +470,7 @@ use constant ABSTRACT_SCHEMA => {
             id               => {TYPE => 'SMALLSERIAL', NOTNULL => 1,
                                  PRIMARYKEY => 1},
             name             => {TYPE => 'varchar(50)', NOTNULL => 1},
-            description      => {TYPE => 'MEDIUMTEXT'},
+            description      => {TYPE => 'MEDIUMTEXT', NOTNULL => 1},
             cc_list          => {TYPE => 'varchar(200)'},
             target_type      => {TYPE => 'char(1)', NOTNULL => 1,
                                  DEFAULT => "'b'"},
diff --git a/mozilla/webtools/bugzilla/Bugzilla/Install/DB.pm b/mozilla/webtools/bugzilla/Bugzilla/Install/DB.pm
index 3b44f301675..43c81d1dd98 100644
--- a/mozilla/webtools/bugzilla/Bugzilla/Install/DB.pm
+++ b/mozilla/webtools/bugzilla/Bugzilla/Install/DB.pm
@@ -2948,8 +2948,9 @@ sub change_text_types {
         { TYPE => 'TINYTEXT', NOTNULL => 1 });
     $dbh->bz_alter_column('attachments', 'mimetype',
         { TYPE => 'TINYTEXT', NOTNULL => 1 });
+    # This also changes NULL to NOT NULL.
     $dbh->bz_alter_column('flagtypes', 'description',
-        { TYPE => 'MEDIUMTEXT', NOTNULL => 1 });
+        { TYPE => 'MEDIUMTEXT', NOTNULL => 1 }, '');
     $dbh->bz_alter_column('fielddefs', 'description',
         { TYPE => 'TINYTEXT', NOTNULL => 1 });
     $dbh->bz_alter_column('namedqueries', 'query',