diff --git a/Wox.Core/Plugin/PluginManager.cs b/Wox.Core/Plugin/PluginManager.cs
index ab237af39..6123508c3 100644
--- a/Wox.Core/Plugin/PluginManager.cs
+++ b/Wox.Core/Plugin/PluginManager.cs
@@ -202,7 +202,7 @@ namespace Wox.Core.Plugin
             return customizedPluginConfig == null || !customizedPluginConfig.Disabled;
         }
 
-        public static bool IsGlobalPlugin(PluginMetadata metadata)
+        private static bool IsGlobalPlugin(PluginMetadata metadata)
         {
             return metadata.ActionKeywords.Contains(Query.GlobalPluginWildcardSign);
         }