diff --git a/src/tool/tool_ban.ts b/src/tool/tool_ban.ts
index 10c846f..d3e5265 100644
--- a/src/tool/tool_ban.ts
+++ b/src/tool/tool_ban.ts
@@ -42,7 +42,8 @@ export function registerBan() {
 
         const memberInfo2 = await getGroupMemberInfo(epId, gid.replace(/^.+:/, ''), ui.id.replace(/^.+:/, ''));
         if (!memberInfo2) return { content: `获取用户 ${ui.id} 信息失败`, images: [] };
-        if (memberInfo2.role === 'owner' || memberInfo2.role === 'admin') return { content: `你无法禁言${memberInfo2.role === 'owner' ? '群主' : '管理员'}`, images: [] };
+        if (memberInfo2.role === 'owner') return { content: `你无法禁言群主`, images: [] };
+        if (memberInfo2.role === 'admin' && memberInfo.role !== 'owner') return { content: `你无法禁言管理员，因为你不是群主`, images: [] };
 
         await setGroupBan(epId, gid.replace(/^.+:/, ''), ui.id.replace(/^.+:/, ''), duration);
         return { content: `已禁言<${name}> ${duration}秒`, images: [] };
@@ -108,4 +109,4 @@ export function registerBan() {
 
         return { content: s, images: [] };
     }
-}
\ No newline at end of file
+}