diff --git a/dashboard/src/components/BackupSiteConfigDialog.vue b/dashboard/src/components/BackupSiteConfigDialog.vue
index ef1a48bfa..7f4755cf3 100644
--- a/dashboard/src/components/BackupSiteConfigDialog.vue
+++ b/dashboard/src/components/BackupSiteConfigDialog.vue
@@ -54,17 +54,12 @@ async function onSubmit() {
     return console.error(error);
   }
 
-  const data = {};
+  const data = site.value.config;
 
   // TODO maybe deal with gcs??
   if (s3like(provider.value)) {
-    data.bucket = bucket.value;
-    data.region = region.value;
-    data.prefix = prefix.value;
-    if (accessKeyId.value !== site.value.config.accessKeyId || secretAccessKey.value) {
-      data.accessKeyId = accessKeyId.value;
-      data.secretAccessKey = secretAccessKey.value;
-    }
+    data.accessKeyId = accessKeyId.value;
+    if (secretAccessKey.value) data.secretAccessKey = secretAccessKey.value;
   }
 
   if (provider.value === 'cifs') {
diff --git a/src/storage/s3.js b/src/storage/s3.js
index 1bcc83605..49be62ed0 100644
--- a/src/storage/s3.js
+++ b/src/storage/s3.js
@@ -635,6 +635,7 @@ async function verifyConfig({ id, provider, config }) {
     if (typeof config.prefix !== 'string') throw new BoxError(BoxError.BAD_FIELD, 'prefix must be a string');
     if ('signatureVersion' in config && typeof config.signatureVersion !== 'string') throw new BoxError(BoxError.BAD_FIELD, 'signatureVersion must be a string');
     if ('endpoint' in config && typeof config.endpoint !== 'string') throw new BoxError(BoxError.BAD_FIELD, 'endpoint must be a string');
+    if ('region' in config && typeof config.region !== 'string') throw new BoxError(BoxError.BAD_FIELD, 'region must be a string');
 
     if ('acceptSelfSignedCerts' in config && typeof config.acceptSelfSignedCerts !== 'boolean') throw new BoxError(BoxError.BAD_FIELD, 'acceptSelfSignedCerts must be a boolean');
     if ('s3ForcePathStyle' in config && typeof config.s3ForcePathStyle !== 'boolean') throw new BoxError(BoxError.BAD_FIELD, 's3ForcePathStyle must be a boolean');