diff --git a/Sinvo.EplanHpD.Plugin/DesignPluginEntry.cs b/Sinvo.EplanHpD.Plugin/DesignPluginEntry.cs
index abbf52e..d193195 100644
--- a/Sinvo.EplanHpD.Plugin/DesignPluginEntry.cs
+++ b/Sinvo.EplanHpD.Plugin/DesignPluginEntry.cs
@@ -13,7 +13,7 @@ namespace Sinvo.EplanHpD.Plugin
 #if DEBUG
     public class DesignPluginEntry : EPLAN.Harness.API.Plugins.IHpDPlugin
 #else
-    public class DesignPluginEntry
+    public class DesignPluginEntry : EPLAN.Harness.API.Plugins.IHpDPlugin
 #endif
     {
         public string Name => "兴禾ProD插件-3D";