diff --git a/main.go b/main.go
index ae45b1e..41c8839 100644
--- a/main.go
+++ b/main.go
@@ -65,8 +65,12 @@ func main() {
 
 		utils.ApplyFlags(cliFlags, flagMappings, c, appOptions, backendOptions)
 
-		appOptions.EnableBasicAuth = c.IsSet("credential")
-		appOptions.EnableTLSClientAuth = c.IsSet("tls-ca-crt")
+		if c.IsSet("credential") {
+			appOptions.EnableBasicAuth = true
+		}
+		if c.IsSet("tls-ca-crt") {
+			appOptions.EnableTLSClientAuth = true
+		}
 
 		err = appOptions.Validate()
 		if err != nil {