diff --git a/main.go b/main.go
index 4e12670..9fdacd2 100644
--- a/main.go
+++ b/main.go
@@ -103,6 +103,7 @@ func init() {
 
 func initConfig() {
 	viper.SetEnvPrefix("INPUT")
+	viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_", ".", "_"))
 	viper.AutomaticEnv()
 
 	viper.RegisterAlias("nats_url", "nats")
@@ -110,6 +111,12 @@ func initConfig() {
 	viper.RegisterAlias("strip_prefix", "prefix")
 	viper.RegisterAlias("notify_topic", "notify")
 	viper.RegisterAlias("clean_all", "cleanup-all")
+
+	_ = viper.BindEnv("nats", "INPUT_NATS", "INPUT_NATS_URL")
+	_ = viper.BindEnv("dir", "INPUT_DIR", "INPUT_SOURCE")
+	_ = viper.BindEnv("prefix", "INPUT_PREFIX", "INPUT_STRIP_PREFIX")
+	_ = viper.BindEnv("notify", "INPUT_NOTIFY", "INPUT_NOTIFY_TOPIC")
+	_ = viper.BindEnv("cleanup-all", "INPUT_CLEANUP_ALL", "INPUT_CLEAN_ALL")
 }
 
 type NATSClient struct {