diff --git a/plugin/common.php b/plugin/common.php
index cb091fe..b5388de 100644
--- a/plugin/common.php
+++ b/plugin/common.php
@@ -3,7 +3,7 @@
 
 function plugin_alias_get()
 {
-    return trim(request()->param("alias"), '\\/');
+    return trim(request()->param("alias",""), '\\/');
 }
 
 function plugin_method_get()