diff --git a/modules/uapf/spec/validate.go b/modules/uapf/spec/validate.go
index 70c4ded..fca679d 100644
--- a/modules/uapf/spec/validate.go
+++ b/modules/uapf/spec/validate.go
@@ -5,7 +5,6 @@ package spec
 
 import (
 	"errors"
-	"fmt"
 	"path"
 )