diff --git a/webui/web/js/api.js b/webui/web/js/api.js
index 3e12e30a..0ec6de2f 100644
--- a/webui/web/js/api.js
+++ b/webui/web/js/api.js
@@ -1846,9 +1846,7 @@ ${tagsXml}
    */
   async putBucketPolicy(bucket, policy) {
     const policyJson = JSON.stringify(policy);
-    await this.request('PUT', `/${bucket}`, { policy: '' }, policyJson, {
-      'Content-Type': 'application/json'
-    });
+    await this.request('PUT', `/${bucket}`, { policy: '' }, policyJson, false, 'application/json');
   }
 
   /**