diff --git a/ui/src/views/system-setting/authentication/component/CAS.vue b/ui/src/views/system-setting/authentication/component/CAS.vue
index 9f353660e..c2274adbf 100644
--- a/ui/src/views/system-setting/authentication/component/CAS.vue
+++ b/ui/src/views/system-setting/authentication/component/CAS.vue
@@ -124,10 +124,10 @@ function getDetail() {
         res.data.config.validateUrl = res.data.config.ldpUri
       }
       form.value = res.data
-      if (!form.value.config.redirectUrl) {
-        form.value.config.redirectUrl = window.location.origin + window.MaxKB.prefix + 'api/cas'
-      }
     }
+    if (!form.value.config.redirectUrl) {
+        form.value.config.redirectUrl = window.location.origin + window.MaxKB.prefix + '/api/cas'
+      }
   })
 }
 
diff --git a/ui/src/views/system-setting/authentication/component/OAuth2.vue b/ui/src/views/system-setting/authentication/component/OAuth2.vue
index f043de33e..9b0131caf 100644
--- a/ui/src/views/system-setting/authentication/component/OAuth2.vue
+++ b/ui/src/views/system-setting/authentication/component/OAuth2.vue
@@ -209,7 +209,7 @@ function getDetail() {
       form.value = res.data
     }
     if (!form.value.config.redirectUrl) {
-      form.value.config.redirectUrl = window.location.origin + window.MaxKB.prefix + 'api/oauth2'
+      form.value.config.redirectUrl = window.location.origin + window.MaxKB.prefix + '/api/oauth2'
     }
   })
 }
diff --git a/ui/src/views/system-setting/authentication/component/OIDC.vue b/ui/src/views/system-setting/authentication/component/OIDC.vue
index 77c6a01d1..7c42270e4 100644
--- a/ui/src/views/system-setting/authentication/component/OIDC.vue
+++ b/ui/src/views/system-setting/authentication/component/OIDC.vue
@@ -218,10 +218,10 @@ function getDetail() {
       ) {
         form.value.config.fieldMapping = '{"username": "preferred_username", "email": "email"}'
       }
-      if (!form.value.config.redirectUrl) {
-        form.value.config.redirectUrl = window.location.origin + window.MaxKB.prefix + 'api/oidc'
-      }
     }
+    if (!form.value.config.redirectUrl) {
+        form.value.config.redirectUrl = window.location.origin + window.MaxKB.prefix + '/api/oidc'
+      }
   })
 }