diff --git a/pkg/core/certifier/challengers/http01/s3/s3.go b/pkg/core/certifier/challengers/http01/s3/s3.go
index 49177822b..e12fe40c4 100644
--- a/pkg/core/certifier/challengers/http01/s3/s3.go
+++ b/pkg/core/certifier/challengers/http01/s3/s3.go
@@ -40,6 +40,7 @@ func NewChallenger(config *ChallengerConfig) (core.ACMEChallenger, error) {
 	providerConfig.SignatureVersion = config.SignatureVersion
 	providerConfig.UsePathStyle = config.UsePathStyle
 	providerConfig.Region = config.Region
+	providerConfig.Bucket = config.Bucket
 	providerConfig.SkipTlsVerify = config.AllowInsecureConnections
 
 	provider, err := internal.NewHTTPProviderConfig(providerConfig)