diff --git a/crawler.go b/crawler.go
index 997994f..32f6838 100644
--- a/crawler.go
+++ b/crawler.go
@@ -7,6 +7,6 @@ import (
 type Crawler interface {
 	Name() string
 	String() string
-	Auth(auth map[string]string) error
+	Auth(auth map[string]interface{}) error
 	Get(sensorConfig *ocsm.SensorConfig) (map[string]string, error)
 }