diff --git a/models/command.go b/models/command.go
index 8d789c5..b559e67 100644
--- a/models/command.go
+++ b/models/command.go
@@ -120,7 +120,7 @@ var codeSignals = []CodeSignal{
 		Command: []string{"清空WCK"},
 		Admin:   true,
 		Handle: func(sender *Sender) interface{} {
-			updateCookie()
+			cleanWck()
 			return nil
 		},
 	},