diff --git a/src/structures/Guild.js b/src/structures/Guild.js
index 8c40c7c8e..f00f4dadf 100644
--- a/src/structures/Guild.js
+++ b/src/structures/Guild.js
@@ -686,6 +686,7 @@ class Guild {
     } else if (typeof options === 'string') {
       options = { reason: options, 'delete-message-days': 0 };
     }
+    if (options.days) options['delete-message-days'] = options.days;
     return this.client.rest.methods.banGuildMember(this, user, options);
   }