diff --git a/src/langs/zh_CN.json b/src/langs/zh_CN.json
index 6013eef..820ce56 100644
--- a/src/langs/zh_CN.json
+++ b/src/langs/zh_CN.json
@@ -151,7 +151,7 @@
     },
     "rpc": {
         "error": {
-            "Unauthorized": "认证失败!"
+            "unauthorized": "认证失败!"
         }
     },
     "options": {
diff --git a/src/scripts/config/aria2RpcConstants.js b/src/scripts/config/aria2RpcConstants.js
index ad1e901..a5dac95 100644
--- a/src/scripts/config/aria2RpcConstants.js
+++ b/src/scripts/config/aria2RpcConstants.js
@@ -8,7 +8,8 @@
         rpcTokenPrefix: 'token:'
     }).constant('aria2RpcErrors', {
         Unauthorized: {
-            message: 'Unauthorized'
+            message: 'Unauthorized',
+            tipTextKey: 'rpc.error.unauthorized'
         }
     });
 })();
diff --git a/src/scripts/config/defaultLanguage.js b/src/scripts/config/defaultLanguage.js
index a115e00..ca5622b 100644
--- a/src/scripts/config/defaultLanguage.js
+++ b/src/scripts/config/defaultLanguage.js
@@ -155,7 +155,7 @@
             },
             'rpc': {
                 'error': {
-                    'Unauthorized': 'Authorization Failed!'
+                    'unauthorized': 'Authorization Failed!'
                 }
             },
             'options': {
diff --git a/src/scripts/services/aria2RpcService.js b/src/scripts/services/aria2RpcService.js
index a835e0a..72c6f5d 100644
--- a/src/scripts/services/aria2RpcService.js
+++ b/src/scripts/services/aria2RpcService.js
@@ -71,8 +71,8 @@
                 return false;
             }
 
-            if (error.message == aria2RpcErrors.Unauthorized.message) {
-                ariaNgCommonService.showError('rpc.error.' + error.message);
+            if (aria2RpcErrors[error.message] && aria2RpcErrors[error.message].tipTextKey) {
+                ariaNgCommonService.showError(aria2RpcErrors[error.message].tipTextKey);
                 return true;
             } else {
                 ariaNgCommonService.showError(error.message);