diff --git a/controllers/file.controller.js b/controllers/file.controller.js
index d5f8876..08b3b94 100644
--- a/controllers/file.controller.js
+++ b/controllers/file.controller.js
@@ -11,9 +11,6 @@ const fileNameLength = parseInt(process.env.FILE_NAME_LENGTH, 10) || 10;
 const multerOptions = {
   limits: parseInt(process.env.FILE_MAX_SIZE_MB, 10) * 1024 * 1024,
 };
-const publicMulterOptions = {
-  limits: parseInt(process.env.PUBLIC_UPLOAD_SIZE_LIMIT, 10) * 1024 * 1024,
-};
 
 let storageEngine;
 
diff --git a/index.js b/index.js
index ec0be88..b7d6ba4 100644
--- a/index.js
+++ b/index.js
@@ -15,6 +15,12 @@ const s3 = require("./engines/s3.engine");
 const local = require("./engines/local.engine");
 const storageMode = process.env.STORAGE_MODE || "local";
 
+// Todo: refactor this way.
+const fileNameLength = parseInt(process.env.FILE_NAME_LENGTH, 10) || 10;
+const multerOptions = {
+  limits: parseInt(process.env.FILE_MAX_SIZE_MB, 10) * 1024 * 1024,
+};
+
 app.get("/", async (req, res) => {
   let storageEngine;