diff --git a/internal/config/config.go b/internal/config/config.go
index b4bba88..9beaea6 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -43,8 +43,12 @@ func getEnvBool(key string, def bool) bool {
 	return v == "true"
 }
 
-func getEnvString(key string, def string) string {
-	v := strings.ToLower(getenv(key))
+func getEnvString(key string, def string, tolower bool) string {
+	var v string
+	if tolower {
+		v = strings.ToLower(getenv(key))
+	}
+	v = getenv(key)
 	if v == "" {
 		return def
 	}
@@ -69,10 +73,10 @@ func LoadConfig() {
 		Uds:         getEnvBool("ENABLE_UDS", true),
 		// I would use `/run/http3-proxy` here, but `/run` is not user writable
 		// which is kinda anoying when developing.
-		Uds_path:        getEnvString("UDS_PATH", "/tmp/http-ytproxy.sock"),
-		Host:            getEnvString("HOST", "0.0.0.0"),
-		Port:            getEnvString("PORT", "8080"),
-		Proxy:           getEnvString("PROXY", ""),
+		Uds_path:        getEnvString("UDS_PATH", "/tmp/http-ytproxy.sock", true),
+		Host:            getEnvString("HOST", "0.0.0.0", true),
+		Port:            getEnvString("PORT", "8080", true),
+		Proxy:           getEnvString("PROXY", "", true),
 		Http_client_ver: getEnvInt("HTTP_CLIENT_VER", 1),
 		Ipv6_only:       getEnvBool("IPV6_ONLY", false),
 		Gluetun: struct {
@@ -80,12 +84,12 @@ func LoadConfig() {
 			Block_checker          bool
 			Block_checker_cooldown int
 		}{
-			Gluetun_api:            getEnvString("GLUETUN_API", "127.0.0.1:8000"),
+			Gluetun_api:            getEnvString("GLUETUN_API", "127.0.0.1:8000", true),
 			Block_checker:          getEnvBool("BLOCK_CHECKER", true),
 			Block_checker_cooldown: getEnvInt("BLOCK_CHECKER_COOLDOWN", 60),
 		},
 		Companion: struct{ Secret_key string }{
-			Secret_key: getEnvString("SECRET_KEY", ""),
+			Secret_key: getEnvString("SECRET_KEY", "", false),
 		},
 	}
 }