diff --git a/internal/backend/s3/config.go b/internal/backend/s3/config.go
index 93de42152..a0aa95609 100644
--- a/internal/backend/s3/config.go
+++ b/internal/backend/s3/config.go
@@ -20,16 +20,18 @@ type Config struct {
 	Layout        string `option:"layout" help:"use this backend layout (default: auto-detect)"`
 	StorageClass  string `option:"storage-class" help:"set S3 storage class (STANDARD, STANDARD_IA, ONEZONE_IA, INTELLIGENT_TIERING or REDUCED_REDUNDANCY)"`
 
-	Connections  uint   `option:"connections" help:"set a limit for the number of concurrent connections (default: 5)"`
-	MaxRetries   uint   `option:"retries" help:"set the number of retries attempted"`
-	Region       string `option:"region" help:"set region"`
-	BucketLookup string `option:"bucket-lookup" help:"bucket lookup style: 'auto', 'dns', or 'path'."`
+	Connections   uint   `option:"connections" help:"set a limit for the number of concurrent connections (default: 5)"`
+	MaxRetries    uint   `option:"retries" help:"set the number of retries attempted"`
+	Region        string `option:"region" help:"set region"`
+	BucketLookup  string `option:"bucket-lookup" help:"bucket lookup style: 'auto', 'dns', or 'path'."`
+	ListObjectsV1 bool   `option:"list-objects-v1" help:"use deprecated V1 api for ListObjects calls."`
 }
 
 // NewConfig returns a new Config with the default values filled in.
 func NewConfig() Config {
 	return Config{
-		Connections: 5,
+		Connections:   5,
+		ListObjectsV1: false,
 	}
 }