diff --git a/kernel/api/repo.go b/kernel/api/repo.go
index 11c458d39..f663535ee 100644
--- a/kernel/api/repo.go
+++ b/kernel/api/repo.go
@@ -17,7 +17,6 @@
 package api
 
 import (
-	"encoding/hex"
 	"fmt"
 	"net/http"
 
@@ -113,7 +112,7 @@ func initRepoKey(c *gin.Context) {
 	}
 
 	ret.Data = map[string]interface{}{
-		"key": hex.EncodeToString(model.Conf.Repo.Key),
+		"key": model.Conf.Repo.Key,
 	}
 }