diff --git a/packages/migrate/package-lock.json b/packages/migrate/package-lock.json
index d87c6550b..b1b018ab3 100644
--- a/packages/migrate/package-lock.json
+++ b/packages/migrate/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@nestia/migrate",
-  "version": "0.18.1",
+  "version": "0.18.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@nestia/migrate",
-      "version": "0.18.1",
+      "version": "0.18.2",
       "license": "MIT",
       "dependencies": {
         "@samchon/openapi": "^1.0.2",
diff --git a/packages/migrate/package.json b/packages/migrate/package.json
index 06919a064..63935a541 100644
--- a/packages/migrate/package.json
+++ b/packages/migrate/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@nestia/migrate",
-  "version": "0.18.1",
+  "version": "0.18.2",
   "description": "Migration program from swagger to NestJS",
   "main": "lib/index.js",
   "typings": "lib/index.d.ts",
diff --git a/packages/migrate/src/internal/MigrateCommander.ts b/packages/migrate/src/internal/MigrateCommander.ts
index c592d54b8..7c0872e3f 100644
--- a/packages/migrate/src/internal/MigrateCommander.ts
+++ b/packages/migrate/src/internal/MigrateCommander.ts
@@ -16,7 +16,7 @@ export namespace MigrateCommander {
 
     // VALIDATE OUTPUT DIRECTORY
     const parent: string = resolve(options.output + "/..")!;
-    if (fs.existsSync(options.output)) halt("Output directory alreay exists.");
+    if (fs.existsSync(options.output)) halt("Output directory already exists.");
     else if (fs.existsSync(parent) === false)
       halt("Output directory's parent directory does not exist.");
     else if (fs.statSync(parent).isDirectory() === false)
diff --git a/packages/migrate/src/test/index.ts b/packages/migrate/src/test/index.ts
index e11b90497..42aa64e77 100644
--- a/packages/migrate/src/test/index.ts
+++ b/packages/migrate/src/test/index.ts
@@ -57,11 +57,11 @@ const execute =
             fs.promises.writeFile(file, await beautify(content), "utf-8"),
         })(directory)(files);
         cp.execSync(`npx tsc -p ${directory}/tsconfig.json`, {
-          stdio: "inherit",
+          stdio: "ignore",
           cwd: directory,
         });
         cp.execSync(`npx tsc -p ${directory}/test/tsconfig.json`, {
-          stdio: "inherit",
+          stdio: "ignore",
           cwd: directory,
         });
       },
diff --git a/packages/migrate/src/utils/StringUtil.ts b/packages/migrate/src/utils/StringUtil.ts
index b0fb82976..2dc22e09f 100644
--- a/packages/migrate/src/utils/StringUtil.ts
+++ b/packages/migrate/src/utils/StringUtil.ts
@@ -84,6 +84,7 @@ const RESERVED: Set<string> = new Set([
 const VARIABLE_REPLACERS: [string, string][] = [
   ["`", "_backquote_"],
   ["!", "_exclamation_"],
+  ["@", "_at_"],
   ["#", "_hash_"],
   ["$", "_dollar_"],
   ["%", "_percent_"],
diff --git a/website/package.json b/website/package.json
index c6bcb1dcd..d1c7e5711 100644
--- a/website/package.json
+++ b/website/package.json
@@ -23,7 +23,7 @@
     "@mui/icons-material": "5.15.6",
     "@mui/material": "5.15.6",
     "@mui/system": "5.15.6",
-    "@nestia/migrate": "^0.18.1",
+    "@nestia/migrate": "^0.18.2",
     "@samchon/openapi": "^1.0.2",
     "@stackblitz/sdk": "^1.9.0",
     "js-yaml": "^4.1.0",