diff --git a/src/app/controller/attendies_controller.go b/src/app/controller/attendies_controller.go
index d933d54..fba1793 100644
--- a/src/app/controller/attendies_controller.go
+++ b/src/app/controller/attendies_controller.go
@@ -24,7 +24,7 @@ func GetAttendiesByEvent(c *fiber.Ctx) error {
 	if err != nil {
 		return c.Status(500).SendString("Internal Server Error")
 	}
-	req.Header.Add("Authorization", fmt.Sprintf("Token %s", config.Env.Domain))
+	req.Header.Add("Authorization", fmt.Sprintf("Token %s", config.Env.ApiKeyPretix))
 	resp, err := config.Client.Do(req)
 	if err != nil {
 		return c.Status(500).SendString("Internal Server Error")
diff --git a/src/entities/environment.go b/src/entities/environment.go
index 1945ffd..497c75e 100644
--- a/src/entities/environment.go
+++ b/src/entities/environment.go
@@ -2,6 +2,7 @@ package entities
 
 type Environment struct {
 	Domain       string `env:"DOMAIN,required"`
+	ApiKeyPretix string `env:"API_KEY_PRETIX,required"`
 	ApiKey       string `env:"API_KEY,required"`
 	DatabasePath string `env:"DATABASE_PATH,required"`
 	Debug        bool   `env:"DEBUG"`