diff --git a/pkg/config/config.go b/pkg/config/config.go
index 679ceae..728665c 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -87,7 +87,7 @@ func MustNewRegexp(pattern string) *Regexp {
 }
 
 type Config struct {
-	JsonParsing *JsonParsingConfig `yaml:json_parsing,omitempty`
+	JsonParsing *JsonParsingConfig `yaml:"json_parsing,omitempty"`
 	Metrics     []MetricConfig     `yaml:"metrics"`
 	MQTT        *MQTTConfig        `yaml:"mqtt,omitempty"`
 	Cache       *CacheConfig       `yaml:"cache,omitempty"`