diff --git a/server/storage/s3.go b/server/storage/s3.go
index 5c1e3a05..4b629915 100644
--- a/server/storage/s3.go
+++ b/server/storage/s3.go
@@ -179,6 +179,9 @@ func (s *S3Storage) Put(ctx context.Context, token string, filename string, read
 func (s *S3Storage) IsRangeSupported() bool { return true }
 
 func getAwsConfig(ctx context.Context, accessKey, secretKey string) (aws.Config, error) {
+	if accessKey == "" || secretKey == "" {
+		return config.LoadDefaultConfig(ctx, config.WithRegion(region))
+	}
 	return config.LoadDefaultConfig(ctx,
 		config.WithCredentialsProvider(credentials.StaticCredentialsProvider{
 			Value: aws.Credentials{