diff --git a/server/config.go b/server/config.go
index 85170c5ea..3fb2dd877 100644
--- a/server/config.go
+++ b/server/config.go
@@ -58,7 +58,7 @@ type Config struct {
 	Verbose bool `toml:"verbose"`
 
 	// TLS
-	TLS TLSConfig
+	TLS TLSConfig `toml:"tls"`
 
 	Cluster struct {
 		// Disabled controls whether clustering functionality is enabled.