diff --git a/cmd/conformance/aws/main.go b/cmd/conformance/aws/main.go
index 7b3223b0..4294fdbb 100644
--- a/cmd/conformance/aws/main.go
+++ b/cmd/conformance/aws/main.go
@@ -48,7 +48,6 @@ var (
 	s3Endpoint        = flag.String("s3_endpoint", "", "Endpoint for custom non-AWS S3 service")
 	s3AccessKeyID     = flag.String("s3_access_key", "", "Access key ID for custom non-AWS S3 service")
 	s3SecretAccessKey = flag.String("s3_secret", "", "Secret access key for custom non-AWS S3 service")
-	s3UseSSL          = flag.Bool("s3_use_ssl", false, "Whether to use SSL for custom non-AWS S3 service")
 	signer            = flag.String("signer", "", "Note signer to use to sign checkpoints")
 	publishInterval   = flag.Duration("publish_interval", 3*time.Second, "How frequently to publish updated checkpoints")
 	additionalSigners = []string{}