diff --git a/main.go b/main.go
index 39d0d04..38d0b0b 100644
--- a/main.go
+++ b/main.go
@@ -66,7 +66,7 @@ func main() {
 
 		utils.ApplyFlags(cliFlags, flagMappings, c, appOptions, backendOptions)
 
-		appOptions.EnableBasicAuth = c.IsSet("credential")
+		appOptions.EnableBasicAuth = appOptions.EnableBasicAuth || c.IsSet("credential")
 		appOptions.EnableTLSClientAuth = c.IsSet("tls-ca-crt")
 
 		err = appOptions.Validate()