diff --git a/packages/noco-docs/content/en/getting-started/installation.md b/packages/noco-docs/content/en/getting-started/installation.md
index 2f341aee2a..f019870064 100644
--- a/packages/noco-docs/content/en/getting-started/installation.md
+++ b/packages/noco-docs/content/en/getting-started/installation.md
@@ -509,6 +509,7 @@ It is mandatory to configure `NC_DB` environment variables for production usecas
 | NC_S3_ACCESS_KEY                   | No        | For S3 storage plugin - AWS access key credential for accessing resource                                                |                                                                                                |   |
 | NC_S3_ACCESS_SECRET                | No        | For S3 storage plugin - AWS access secret credential for accessing resource                                             |                                                                                                |   |
 | NC_ADMIN_EMAIL                     | No        | For updating/creating super admin with provided email and password                                                      |                                                                                                |   |
+| NC_ATTACHMENT_FIELD_SIZE                     | No        | For setting the attachment field size(in Bytes)                                                      | Defaults to 20MB                                                                                         |   |
 | NC_ADMIN_PASSWORD                  | No        | For updating/creating super admin with provided email and password. Your password should have at least 8 letters with one uppercase, one number and one special letter(Allowed special chars <code>$&+,:;=?@#&#124;'.^*()%!_-"</code> )                                                     |                                                                                                |   |
 | NODE_OPTIONS                  | No        | For passing Node.js [options](https://nodejs.org/api/cli.html#node_optionsoptions) to instance                                                     |                                                                                                |   |
 | NC_MINIMAL_DBS                  | No        | Create a new SQLite file for each project. All the db files are stored in `nc_minimal_dbs` folder in current working directory. (This option restricts project creation on external sources) |  |  |
diff --git a/packages/nocodb/src/lib/constants/index.ts b/packages/nocodb/src/lib/constants/index.ts
index ed009d8237..c2fdcb32cf 100644
--- a/packages/nocodb/src/lib/constants/index.ts
+++ b/packages/nocodb/src/lib/constants/index.ts
@@ -1,5 +1,4 @@
 export const NC_LICENSE_KEY = 'nc-license-key';
 export const NC_APP_SETTINGS = 'nc-app-settings';
-export const NC_ATTACHMENT_FIELD_SIZE = process.env['NC_ATTACHMENT_FIELD_SIZE']
-  ? Number(process.env['NC_ATTACHMENT_FIELD_SIZE'])
-  : 20 * 1024 * 1024; // 20 MB
+export const NC_ATTACHMENT_FIELD_SIZE =
+  +process.env['NC_ATTACHMENT_FIELD_SIZE'] || 20 * 1024 * 1024; // 20 MB