diff --git a/src/api.ts b/src/api.ts
index e263d14..6469a05 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -9,6 +9,7 @@ import NodeCache from "node-cache";
 import Axios from "axios";
 import urlJoin from "url-join";
 import qs from "qs";
+import { stringifySettings } from "$lib/utils/stringifySettings";
 
 export class Api {
     readonly host: string;
@@ -277,9 +278,9 @@ export class Api {
             this._logger.debug(`Adding inbound ${options.remark}.`);
             const inbound = await this.post<Inbound>("/add", {
                 ...options,
-                settings: JSON.stringify(options.settings),
-                streamSettings: JSON.stringify(options.streamSettings),
-                sniffing: JSON.stringify(options.sniffing),
+                settings: stringifySettings(options.settings),
+                streamSettings: stringifySettings(options.streamSettings),
+                sniffing: stringifySettings(options.sniffing),
             });
             this._logger.info(`Inbound ${inbound.remark} added.`);
             this.flushCache();
diff --git a/src/lib/utils/stringifySettings.ts b/src/lib/utils/stringifySettings.ts
new file mode 100644
index 0000000..8dcac5f
--- /dev/null
+++ b/src/lib/utils/stringifySettings.ts
@@ -0,0 +1,11 @@
+export const stringifySettings = (settings: any) => {
+    if (typeof settings === "object") {
+        return JSON.stringify(settings);
+    }
+
+    if (typeof settings === "string") {
+        return settings;
+    }
+
+    return "";
+};
diff --git a/tests/server.json b/tests/server.json
index c624314..33e59cf 100644
--- a/tests/server.json
+++ b/tests/server.json
@@ -1,6 +1,6 @@
 {
-    "username": "xBII1ZPkFx",
-    "password": "BZD8k3mWrm",
-    "port": "22642",
-    "webBasePath": "A63hQCOqreVqicR"
+    "username": "admin",
+    "password": "admin",
+    "port": "2053",
+    "webBasePath": ""
 }